This is really just a disguised way to look for new interesting software

Name some of the software you simply can't live without. That software that you like to have around even if you don't always use it; aka your favorites.

Mine (in no particular order):

. Celestia
http://celestia.sourceforge.net/

. Stellarium
http://www.stellarium.org/

. Sunbelt Kerio Personal Firewall
http://www.sunbelt-software.com/Kerio.cfm (former Kerio Personal Firewall, former Tiny Personal Firewal. Yeah. This has been with me for a veeery long time. Still free)

. Gravity
http://mpgravity.sourceforge.net/ (Also with me since version 1 when it was a commercial product)

. HTTrack
http://www.httrack.com

. ADOM and Nethack's Slash'em
http://www.adom.de/ and http://www.slashem.org/ (I simply will never get bored with these two. Been too many years already.)

. DAEMON Tools
http://www.daemon-tools.cc/dtcc/download.php


Sorry Linux folks.