What software (operating system and applications) does everyone use? Post your favorite pieces of software here.
I triple-boot Mac OS X Leopard, Windows Vista Ultimate (32-bit), and Ubuntu 8.10 Intrepid Ibex 64-bit. Given that I alternate between these different systems (this week I'm using Vista) I tend to really like cross-platform software, the more so when it falls under the GPL.
Programs I use in all three operating system:
Mozilla Firefox 3
Firefox add-ons: ColorfulTabs, AdBlock Plus, Speed Dial, All-in-one Sidebar, Autopager, DownThemAll (download accelerator), Fast Video Download, FoxMarks, StumbleUpon, TwitterFox
Mozilla Thunderbird
Mozilla Lightning calendar add-on to Thunderbird, or Sunbird stand-alone calendar
Pidgin IM (the Mac version is called Adium, but it's the same thing)
LyX LaTeX editor
OpenOffice (v. 3 for Mac/Windows, still on 2.4 for Ubuntu since Canonical hasn't spoon-fed OOo3 to me through the main repos)
Opera as a back-up web browser
Seamonkey to a lesser extent (my Ubuntu Seamonkey is outdated, and I only really use it in OS X)
mplayer
vlc media player
Programs I only have in Mac OS X: Safari (which I never use)
Apple Mail (which I never use)
Jinn and Decaf FICS clients (don't like either of them very much)
Microsoft Office 2008 (bloated, but it has some decent features)
NeoOffice (Apple port of OOo from before v.3 offered native Aqua support)
Sage
Programs I only have in Vista: Microsoft Office 2007 (very full-featured, but it sucks on compatibility)
BabasChess (hands-down THE greatest FICS client of all time)
Spybot Search & Destroy (who needs malware protection in Mac or Linux?)
Avast! Antivirus (who needs antivirus in Mac or Linux?)
IsAdmin FireFox add-on to limit user privileges that FireFox can execute
Programs I only have in Ubuntu: eBoard (FICS client that is very nice, in some ways easier to use than Babaschess, but not as full-featured)
Rhythmbox
Banshee media player
Compiz Fusion
AbiWord/Gnumeric
Sage (OK, I have this one in Mac and Linux)
Maxima, Mathomatic, Octave, etc
So what programs does everyone else make use of? Any recommendations of a good, killer app I'm missing?
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