10. Textarea Backup (all sites except Gmail) - Lifehacker

10. Textarea Backup (all sites except Gmail) - Lifehacker: "Top 10 Greasemonkey User Scripts, #10: If you spend a lot of time typing into web forms - whether it's for a blog, web mail, forum or comment - you know how painful it can be to accidentally close a tab or your browser and lose your work before you save it. The Textarea Backup script automatically saves the contents of your textareas every 10 keystrokes, whenever the area loses focus and every 10 seconds, for instant restore in case of an accident. (Note: there were some issues with this script auto-filling Gmail To: and BCC: fields, so by default it's disabled in Gmail, which does its own auto-saving anyway.)"