If you frequently use Notepad to jot down things, use F5 to get the current timestamp. And even better, to automatically generate a timestamp whenever you open the file, add .LOG to the top of the file.
When it is really hard to name your character in your story, skip to the end credits of a film. There is no other place you can find a diverse list of real names.
Painters who got used to their mistakes would often look at their paintings upside down to spot the errors. You can apply the same for writings by changing the margin of the document or changing the font. I write essays and these small changes help.