Practical AI for your work.

Short guides to using AI at work, written and dated by me, because in AI everything goes stale fast. When something changes, I share it in the group.

By

· 5 min read

Which AI to use for what at work

Each AI is better at some jobs than others. Here’s how I choose, with the ranking as it stood on 1 October 2026.
· 9 min read

The best AI right now

My October 2026 ranking in five lines, what changed this month and how to read the leaderboards without being fooled. I update it every month.
· 6 min read

Which AI to pay for: the subscription that pays off in 2026

Free, about €20 or €100 and up a month. What each step gives you and how to tell which one you need, without overpaying.
· 8 min read

Claude Cowork vs ChatGPT Work: which one to use at work

The two office agents for people who don’t code, side by side: which plan you need, what they do with your files and five tasks to compare them yourself.
· 4 min read

What an AI agent is and how to use one at work

The difference between asking an AI something and giving it a job. With an example of 200 invoices and the rules that keep you out of trouble.
· 5 min read

Claude Code and Codex for non-coders

They were born for programmers, but today they organise documents, pull data out of invoices and prepare reports. This is how to start with them without knowing how to code.
· 8 min read

Best AI for Excel: which one to use based on what you already pay for

If you pay for Microsoft 365, ChatGPT or Claude, you already have an AI that works inside your spreadsheet. Which one it is, what it does well and how to check it copes with Spanish VAT and dates.
· 12 min read

The best AI for presentations: which one to use and how to ask

If you are presenting to a client or a partner next week, you don’t need twenty tools. Which one to use based on what you already pay for, and how to ask so it doesn’t make up figures.
· 5 min read

How to compare quotes and contracts with AI without mistakes

Compare three quotes in five minutes without skipping the small print. Here’s how I do it, with the text to copy.
· 12 min read

ChatGPT, Claude and GDPR: what you can do with your clients’ data

Which account you need and which settings I would change today, with what the law and the AEPD say. And how to strip personal data out of a document before it reaches the AI, not after.
· 10 min read

AI for the self-employed in Spain: 12 tasks to take off your plate

Quotes, invoices, late payers, reviews and the quarterly paperwork. What I would hand to AI tomorrow, with the text to copy, and where I would put the brakes on.
· 13 min read

Is AI training mandatory for businesses in Spain? What the law asks in 2026

If anyone in your business uses ChatGPT or Claude for work, Article 4 applies to you. Since July 2026 it asks for less than people are selling, and the essentials take an afternoon.
· 7 min read

How to learn AI from scratch without coding

To use AI at work, ten minutes a day and real tasks from your week are enough. This is the plan I’d follow if I were starting today, week by week.
· 9 min read

The AI agent dictionary: MCP, skills, AGENTS.md and the rest

If you read about AI agents, these words turn up in every paragraph. Here is each one in a couple of sentences, with an office example, and which ones you actually need when you start.
· 3 min read

How to keep up with AI without wasting time

Nobody can read everything, and you don’t need to. What you need is a filter, and here is mine.