What's in your thumbdrive?

Broue Master writes: Nowadays, we need to support not only people at the office, but friends, family, friends of the family, family of the friends... you name it! They all run Windows to a degree and there are many tools to help you when assisting. Personnaly, I have a thumbdrive with removable memory cards. One of them has a small bootable linux, they other one is filled with ready to use windows utilities (cpuz, uedit32...), dos utilities I've been collecting over the years, and unix-style utilities (ps.exe, kill.exe...) ported to windows (without the need for a layer like cgywin). I also have a copy of the install files for AVG, Spybot, Sygate and the likes. But, even though I think I have many great tools, I'm sure I do not know about a lot of great others to help diagnose and solve problem. So I ask you, what's in your thumbdrive?