When I get a vanilla Windows system, there\'s a bunch of stuff I change to make it more developer-friendly.
Some of it I remember every time, other stuff I only do as an
I install all of the shell extensions I normally use (TortoiseSVN and CommandHere for example).
Also, one of the first things I do after I reimage a machine is make sure it's hooked to all of my network shares properly. Few things derail my work as quickly as having to fight with the network to get a file at an inopportune time.