1) a collection of autohotkey scripts (key remapping, fast toggling for show/hide hidden files, toggle selected text from upper/lowercase and a heap more)

2) sms reminders on google calendar (free!)

3) learning as many kb shortcuts to your software as you can

4) automatic filters and a well thought out label system in gmail

5) sumatra pdf viewer, or any really quick pdf program

6) electric blanket on a timer, makes going to bed when I should seem so much more appealing

7) sysinternals process explorer instead of the usual taksmanager

8) a large good quality whiteboard hung somewhere you cannot ignore it (I have 3 main sections: Do, Dates & Buy)

9) write well thought out shopping lists before you leave for the store