Use the right tool for the job

You would not use a bread knife on a tomato. Same principle here. All five assistants can do most things, but a few jobs have a clearly better tool, and knowing the match saves you time and spares you frustration.

Four jobs, four right answers

Trustworthy answers you can check. Reach for Perplexity. It answers with footnotes — little numbered links to where each claim came from. Then do the one habit that matters more than any tool: click the source and confirm it. Every assistant, without exception, is sometimes confidently wrong. The footnotes make checking easy; the checking is still your job.

Your own letters and documents. Reach for NotebookLM at notebooklm.google.com — free with a Google account. You upload the document — an insurance letter, a lease, a medical summary — and it answers questions using only what you gave it, pointing to the exact passage. Because it cannot wander beyond your document, it almost never invents. For a baffling letter, this is the safest room in the house.

Travel and trips. ChatGPT or Gemini, either one. Day-by-day itineraries, packing lists, budgets, comparisons — they are tireless and surprisingly thoughtful. One firm caution: they sometimes invent restaurants and get opening hours wrong, so confirm any specific place on its official site before you book or show up. The AI plans; you verify; then you enjoy.

Everyday life. Any of the five. Meal plans, hard emails, plain-English explanations, summaries, gift ideas — this is the bread and butter, and every assistant does it well.

The habit underneath all of it

For anything that matters — money, health, law, news — verify the source yourself before you act. That is not distrust of the machine; it is the same good judgment you apply to a confident stranger at a party. Interesting, possibly right, worth checking.