Gmail- Cant live without it
www.logmein.com - Don't know if this counts but I make all my relatives install it so I can log into there computer and fix it. None of them are tech savy
Joomla - for me who doesn't program website from scratch this is a great thing. so many extensions
Firefox
Openoffice - love that open office can handle almost any extension
Google Analytics - track my websites I run
Google Doc's
Wootylzer-- So I know when Woot up dates
Cannot think of anything else at this moment