OK, I have a tool for you to check out if you are a Windows user. The tool is called CCleaner. Click here for additional information. I'm going to give you some things I like about it. First of all, it is a free tool. I recommend you download it use it on a regular scheduled basis.
It combines a system cleaner that cleans your PC of unused temporary files from your PC. On top of that, it also has a great registry cleaner too. The reason you want to run this is that it allows you to keep your Windows system running faster and it also frees up hard drive space. It also has a nice section that helps you clean up all those tasks that happen when your system starts up. Seems like every application that you install with the default setup will always start up at boot time. You don't need to do this and this can slow your PC when your system tray is full of all these started applications.
Hope you all had a great weekend and of course ROCK CHALK JAYHAWK!!