AutoHotkey is a program all the cool kids have been using for a while, but I just got into it today.  After 5 minutes of using it, I can already draw the conclusion that it's awesome.  It's essentially a program launcher based on hotkeys; you assign a certain keyboard combination to a certain program and that program is launched when you press that combination of keyboard keys.  I used to use an old Windows 98 program called WinKey to do this for me.  The problem with this program was that the settings weren't easily transferrable from one machine to another, so I had to manually set it up every time I started using a different computer.  HoeKey solved this problem by using simple syntax in plain text files, but it's a little buggy when you try to edit the configuration file while you're using the program.  AutoHotkey is similar to HoeKey except that it's easy to edit while in use, and it's talked about on more websites.  The folks at Lifehacker, for example, talk about the program regularly, and I've been meaning to try it out for a while now.  One of the coolest things I noticed in the first 5 minutes of use is that each configuration file (.ahk) can be compiled into an executable (.exe), which means it's incredibly easy to port settings from one computer to another.  And if you don't feel like installing AutoHotkey on that other computer (if you were just using it for a limited time, like at an internet cafe), the compiled executable solves that exact problem.  All in all, this is a really cool program, and there's tons of information about it on the internet, so it's infinitely extensible.