Subversion holds various information in .svn directories placed in all directories and sub-directories under version control. Sometimes it is desireable to clean out these files, for example, prior to emailing a zip of the files. I use the awesome tool Total Commander for the job.
If you use more than one computer chances are that you use DropBox to keep a number of often used files syncronized and at hand.
I had my old Windows Pocket PC 2003 stolen from my office and until now I have developed on the emulator. However, now the need for a physical device has come up and I got the HP IPAQ 214.
My previous task switcher application had a serious performance problem as it was programmed in .NET. In order to start the small utility you had to load up the CLR and a bunch of assemblies (dlls). If you are a .NET developer it might not be that big a problem as most of the code was already loaded up. However, for general use it was not the best option.
F# has a nice syntax for creating sequences where elements are created on demand.
I prefer to use the keyboard whenever possible. I have a two monitor setup and found myself moving windows from one monitor to the other using the mouse. However, using AutoHotKey I was able to do this by keyboard. Also I wanted to swithc easily to a particular window using the keaboard.
Update: The functionality has now been integrated into Windows 7.