Free course · Updated 2026

How to use AI in your business.

7 practical lessons and 10 ready-to-paste prompts. ChatGPT, Claude, Gemini — all explained for someone who wants results, not theory. No account, no payment, no spam.

7 lessons · 90 minutes 10 ready-to-use prompts 100% free · no signup
How do I write a product description? Here are 3 versions: 1. Mejuri style — minimalist... 2. Emotional — storytelling... Give me a shorter one
40%
time saved
3-5×
content/month
$ 0
start cost
Table of contents

What you'll learn in this course.

Lesson 01

Why AI is no longer optional in 2026.

In 2024, AI was still "a curiosity." In 2026, it's a concrete competitive advantage. Recent studies show entrepreneurs using AI spend 40% less time on administrative tasks and produce 3-5× more marketing content per month.

Good news: you don't have to be a programmer. Modern tools (ChatGPT, Claude, Gemini) work like a smarter Google — as long as you know how to ask.

Bad news: anyone not using AI in 2026 will be outpaced by those who do. Not by AI itself, but by competitors who use it well.

Number to remember: 73% of first-time entrepreneurs in Romania say they don't have time to read the Tax Code. AI solves exactly that — it explains in 30 seconds what would take you 30 minutes alone.

In the next 6 lessons, you'll learn how to take advantage of it — no fluff, no jargon, no need to become a "prompt engineer."

Lesson 02

The 4 AI tools you'll use daily.

There are hundreds of AI tools in 2026. The truth is you only need 3-4 max. Here they are, ranked by practical usefulness:

1
ChatGPT (OpenAI) — the all-rounder

The most popular and best for general use. The free version covers 80% of needs. Plus ($20/month) — recommended if you use it daily, gives access to GPT-5, image generation, file analysis.

Best for: brainstorming, drafting emails, summarizing documents, translations.

2
Claude (Anthropic) — the thinker

Better than ChatGPT for long texts, legal/tax analysis, creative writing. More nuanced answers, fewer "hallucinations." The free version gives you Claude Sonnet 4.6.

Best for: contracts, long blog articles, document analysis, complex questions.

3
Gemini (Google) — the researcher

Integrated with Google Search, so it's best for up-to-date information. Free for normal use. Useful when you want recent market data, competitors, prices.

Best for: market research, current prices, industry news, fact-checking.

4
Perplexity — with sources

AI that answers with links to the sources it used. Useful when you don't have time to research yourself but want to verify where the info comes from. Free with generous limits.

Best for: research with sources, verifying information, data-based articles.

LightApp recommendation: start with ChatGPT free + Claude free. If after a month you're using them daily, upgrade to Plus on one of them. Don't pay for both unless you're a power user.
Lesson 03

How to write effective prompts. The CLEAR formula.

The biggest quality jump in AI doesn't come from the tool — it comes from how you ask. A weak prompt gives generic results. A good prompt gives you the answer you need on the first try.

The CLEAR formula (Context + Lift + Example + Audience + Result):

  • C — Context: Who you are and your situation. "I run a 2024 micro-SRL selling handmade products on eMAG."
  • L — Lift: What you specifically want. "I want a product description for a silver bracelet."
  • E — Example: How you'd like it to look. "Style similar to Mejuri or Pandora — minimalist, emotional, under 80 words."
  • A — Audience: Who it's for. "For urban women 25-40 buying gifts."
  • R — Result: Final format. "Give me 3 versions. For each, indicate the tone used."

Common mistakes — and how to avoid them

✗ Weak prompt

"Write me a marketing email"

✓ Good prompt

"Write me a marketing email for past customers who haven't returned in 3 months. I sell handmade products. Tone: warm, no pressure. Length: max 100 words. Include a 15% discount code."

Golden rule: If the answer is generic, your prompt is generic. Add context, examples, constraints.
Lesson 04

AI for marketing and content.

This is where AI saves you the most hours. 5 concrete uses:

  • Social media post ideas

    "Generate 20 Instagram post ideas for a handmade jewelry studio. Mix: educational, behind-the-scenes, products, testimonials. For each idea, give me a caption + 5 relevant hashtags."

  • Email marketing

    Welcome funnel (3-5 emails), inactive customer reactivation, new product announcements, abandoned cart recovery. AI writes the skeleton, you add your voice.

  • Landing page copy

    Headline, subheadline, benefit bullet points, FAQ, CTA. Use the AIDA framework (Attention, Interest, Desire, Action) or PAS (Problem, Agitate, Solution).

  • SEO optimization

    Generate title tags, meta descriptions, H1/H2/H3 structures, long-tail keyword ideas. AI doesn't replace an SEO specialist, but for basic content it works perfectly.

  • Replies to reviews

    Especially negative reviews — AI helps you respond calmly and professionally when you'd want to scream. Saves your reputation and your nerves.

Pro tip: Save your brand voice in a Notion/Google Doc (3-5 tone characteristics: e.g., "friendly, direct, no jargon, we use diminutives, subtle humor"). Paste it at the start of any prompt and AI keeps your style.
Lesson 05

AI for accounting and tax.

This area is more delicate. AI is excellent at explaining, but weak at executing tax filings. Use it correctly:

✓ DO — what to use it for
  • Understanding complex legal texts
  • Differences between PFA vs SRL for your case
  • Steps for e-Invoice, SPV, unique declaration
  • Common-sense questions about VAT, dividends
  • Quick concept verification
✗ DON'T — what to avoid
  • Actually filling out declarations
  • Important tax decisions (setup, optimization)
  • Calculations with thresholds — figures may be outdated
  • Complex legal cases
  • Replacing your accountant entirely
Hybrid solution: use AI to understand, use the LightApp calculators to calculate exactly (CAS, CASS, dividends, VAT — all with verified 2026 thresholds). For official filing, you need an accountant.
Lesson 06

AI for customer service and automation.

Customer service eats up time. AI automates part of it, but smartly.

  • Site chatbot

    Simple tools: Tidio, Crisp, Voiceflow. Set up in 1-2 hours a chatbot that answers 80% of frequent questions (hours, delivery, returns, prices). Cost: 0-30 EUR/month for small volumes.

  • Smart auto-reply email

    In Gmail/Outlook set rules: emails containing "return" automatically trigger an AI-pre-filled draft with return steps. You just review and send.

  • Sorting urgent vs non-urgent messages

    AI (via Make.com or Zapier) reads your messages and tags them: "urgent," "follow-up," "spam." You respond first to what matters.

  • Dynamic FAQ

    Add a widget on your site where the customer types the question naturally — AI answers from your FAQ base. Reduces 30-50% of support emails.

Warning: don't let AI respond autonomously to sensitive situations (refunds, complaints, conflicts). You always need a human "in the loop" for what truly matters.
Lesson 07

Limits, ethics, GDPR and AI Act 2026.

You can't use AI any way you want in the EU. Some common-sense rules + legal ones:

  • Hallucinations — AI lies with a smile

    AIs invent sources, quotes, statistics, legal articles. Verify EVERYTHING before publishing. Especially: numbers, dates, proper names, links.

  • Sensitive data — DO NOT put in AI

    Never personal IDs, IBANs, passwords, customer medical data. Free AI versions use conversations for training. Business versions (ChatGPT Team, Claude Pro) have better privacy, but still be careful.

  • GDPR — customer personal data

    If you process personal data through AI (e.g. analyze customer messages), you must mention it in your Privacy Policy and obtain their consent.

  • AI Act 2026 — EU compliance

    The EU AI Act is active from 2026. For a small entrepreneur using AI as an assistant, the impact is minimal. Important: if you use AI for decisions affecting people (CV screening, credit scoring), you have extended transparency obligations.

Golden rule: AI is an assistant, not an authority. Whatever comes out is a draft, not a final product. Verify, adjust, take responsibility.
Bonus · 10 prompts

Ready to copy, ready to act.

Copy, paste in ChatGPT/Claude, replace the parts in [brackets] and you're done. All tested for entrepreneurs.

01 eMAG product description
You are a copywriter for an online store. Write a product description for [product name]. Category: [category]. Target audience: [audience]. Key benefits: [3 benefits]. Length: max 150 words. Format: hook paragraph + benefit bullet points + closing paragraph with subtle call-to-action. Style: clear, no superlatives, focus on usefulness.
02 Customer reactivation email
Write a reactivation email for customers who haven't purchased from me in [X months]. I sell [product type]. Tone: warm, sincere, no pressure. Include: subject line with 30%+ open rate, personalized greeting, acknowledge we lost touch, concrete reason to return (discount code, new product, event), clear CTA. Max 120 words.
03 20 Instagram post ideas
Generate 20 Instagram post ideas for [business type] for one month. Mix: 30% educational, 30% behind-the-scenes, 20% products, 20% testimonials/UGC. For each: caption (under 200 characters), 5 relevant hashtags, format suggestion (carousel/reel/static post).
04 Reply to negative review
I received this negative review: "[review text]". Write a public response (Google/Facebook): tone calm, professional, not defensive. Steps: 1) acknowledge the issue, 2) sincere apology without over-apologizing, 3) propose a concrete solution, 4) invite to private conversation. Max 80 words.
05 Explain a Tax Code article
I have this Tax Code article: [paste article]. Explain it in 3 points, in plain language, for an entrepreneur with no legal background. Add a concrete example with numbers. At the end: what do I need to do practically.
06 Full landing page copy
Write complete copy for a landing page selling [service/product]. Audience: [audience]. Price: [price]. Format: H1 (under 10 words), subheadline, 3 benefit bullets, 1 social proof paragraph, FAQ with 5 questions, main CTA. Framework: PAS (Problem, Agitate, Solution).
07 30-day blog content plan
Generate a 30-day editorial calendar for the blog of a business in [industry]. For each article: title (with SEO keyword), main keyword, 3 long-tail keywords, proposed H2/H3 structure, estimated length, intent (informational/commercial). Mix: 60% educational, 25% comparison, 15% commercial.
08 Competitor analysis
I sell [product/service]. Direct competitors: [3-5 names]. Analyze: 1) what they do better, 2) what they do worse, 3) where I can differentiate, 4) a concrete attack angle for the next 90 days. Use your knowledge of the market.
09 30-second elevator pitch
Write 3 versions of a 30-second pitch for [business]. For each version: hook (under 10 words), problem solved, my unique solution, credible number, CTA. Style: conversational, not corporate. For: networking, podcast, investor meeting.
10 B2B client proposal
Write a commercial proposal for [client], who is a [company type], has [problem]. I sell [service]. Format: cover letter (max 150 words) + structured offer (scope, timeline, deliverables, price, payment terms, validity). Style: professional but human, no corporate jargon.
Next step

Ready to use AI in your business?

This course gave you the basics. For exact tax calculations (when AI isn't enough), use our calculators. All free, all with 2026 thresholds.

Frequently asked questions

About the AI course.

Is the course really free?
Yes, 100%. We don't ask for email, account, payment. Keep it open in your browser or bookmark it. Our only "indirect payment": if you like it, recommend it to a fellow entrepreneur.
Do I need to know how to code?
No. The course is for entrepreneurs, not developers. If you can use Google and write an email, you're ready.
How long does it take?
90 minutes total reading. But you don't have to do it in one day. Ideal: one lesson per evening, over a week. Apply as you learn.
What's the difference between ChatGPT and Claude?
ChatGPT is more versatile for general use and integrates with more tools. Claude is better for long texts, legal/tax analysis, and has fewer hallucinations. Use both — they're free.
Will the course be updated?
Yes. AI evolves rapidly. We review the course quarterly and update tools, prompts, examples. The last update date appears at the top.
Can I copy the prompts for my business?
Absolutely. That's what they're for. All 10 prompts have a "Copy" button — one click and they're in your clipboard. Replace [brackets] with your details and you're done.
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