I love Personal Brain -- http://www.thebrain.com/ -- but I've found
that it's less useful than it could be, because I need to work out
where in my brain I want to place a thought.
 
Just found the solution: create an "inbox" thought (as in Getting
Things Done) and pin the thought. Now I can drag everything into the
Inbox, and sort out the mess later. :-)
 
This should save me lots of time each day.