1. Mozilla Firefox - This browser has just been the best browser for me to use as well as my family. Tried the others but felt this one excelled by a good margin.
2. Skype - Whenever I want to talk with good friends of mine. I don't mind voice chatting either.
3. Paint XP version - Great for when I am ripping tiles because it gets the edges very accurately. I've always liked this version.
4. Camstudio - I use this when I'm recording something no bigger than 500x400 (just an estimate, but I know it can't record 640x480 perfectly)
5. Anvil Studio - Sometimes I like to give a try at porting some VG music by ear, even though I fail miserably with the notes. The drum track I can get correct, however...