Everybody has some computer stuff, hardware or software, that they simply cannot live without (the TRULY essential stuff, like a CPU, aside). My list:

-My Microsoft optical mouse: fits very cozily in my hand, plus it's optical.
-Mozilla (http://www.mozilla.org) (free!)
-OpenOffice (http://www.openoffice.org)(free!)
-Trillian (http://www.trillian.cc) (free!)
-AVG Anti-Virus (http://www.grisoft.com) (free!)

What's your list?

Free Cell