Simon Willison’s Weblog

Never use a warning when you mean undo. The abundance of “undo” is one of my favourite things about Gmail. I wonder if there’s anything Django could do to make implementing undo functionality easier...

Posted 17th July 2007 at 11 am

Recent articles

OpenAI are quietly adopting skills, now available in ChatGPT and Codex CLI - 12th December 2025
GPT-5.2 - 11th December 2025
Useful patterns for building HTML tools - 10th December 2025

a-list-apart 9 django 582 gmail 23 undo 4 usability 96 warning 1

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