What's really amazing is when seemingly unrelated stressful moments in your life are revealed to be from the same source.
stuff I'm working on right now
Stuff that I know needs to get done
Stuff that is now done.
By externalizing the bookkeeping of all the things I'm trying to keep straight in my head I free up cycles to actually work on something.
Of course, this is probably a reason to do it.
As a result, I've started saving things less and less. However it's still useful to initially type them out. Helps me plan and form my thoughts and ideas. Currently this usually involves opening Textmate or Tumblr (and saving drafts) or email.
Hopefully this will be a solid replacement for all of the above. If I end up typing something I do want to use, then I'll copy and paste it elsewhere. The majority of the time I'll simply close the browser and not save it.