October 27, 2026 · 10 min
A week with a spreadsheet helper
A helper that writes formulas from plain sentences. Good for sums and lookups, wrong once on a date format. Cost: a small monthly fee I cancelled.
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One Tool a Week
A short letter every Tuesday: one AI tool tried on ordinary work for a week, with what it was good for, what it got wrong and what it cost.
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A week with a chat assistant for study notes
I used a chat assistant to turn a messy lecture page into a clean summary. It was good at structure and wrong about two dates. Cost: the free plan.