Fuck I use so much shit .. I'll just start listing them
- WinScp
Putty
fileZilla
Firefox
Pidgin
DeskTask
RealVNC
Avira
VLC
Daemon Tools
Moo0 RightClick
Moo0 SystemMonitor
IrfanView
NetStat
SftpDrive
wireshark
pfSense
Look@Lan
Look@Host
Notepad++
Komode IDE
Eclipse
SQLYog
cpuz
testdisk
spybot
CCCleaner
DVD Decrypter
DVD shrink
Mz Ultimate Tweaker
TrueCrypt
WinRAR
SpeedFan
Thats just off the top of my head. And mostly free/open source shit.