Home: Ubuntu 14.04 for both desktop and HTPC (MythTV). Both are custom builds. Became exclusively Linux at home around 12 years ago, when I built a cheap PC for £160, then had to pay £200 for a Windows XP licence, but couldn't install it because the CD was covered in holograms which the ultra-cheap CD drive couldn't read.

Work: Desktop is Windows 7. Believe it or not I'm one of a handful piloting Windows 7 - most are still on Windows XP.