I always swap the CapsLock and Ctrl keys and there are quite a few ways to do this in Windows 7, however, the easiest way by far, in my opinion, is simply to manually edit the Windows Registry.
There is nice guide available here: http://www.kodiva.com/post/swapping-caps-lock-and-control-keys
If you never tried working with these two keys switched then give it at try. It really is a more comfortable way use a keyboard.