Sometimes it's the little things.
A while ago, I installed .net demon and ran the trial. I was instantly impressed.
The trial expired during a period when I wasn't coding at home very often. I kind of forgot about it, except for occasionally noticing the trial expiration reminder at the bottom of visual studio. Too many other more pressing things to do...blah blah blah.
As I was working today, I suddenly noticed how often I was pressing ctrl-s (save), ctrl-shift-b (build), alt-tab (switch windows), and F5 (refresh browser).
I went to the .net demon site to purchase my license.
Thirty dollars. I've been expending all those keystrokes to save thirty dollars?
I find I'm using the mouse a lot less as well.
I think I've gotten my money's worth typing up this post. :-]