The simplest things can be the best! Many of you already know that you can enter "go dilbert" in the address bar in IE to search for information about Dilbert.
By total accident, I came across a great tweak to Internet Explorer at http://www.commandline.co.uk/searchurl/index.html which has registry extensions to allow you to search for even more useful stuff. For example, how many of you want to search for a Microsoft Knowledgebase article by number? Easy (with a few extra finger presses) by going to http://support.microsoft.com and entering the number.
Now you can search right from the address bar by entering "KB 172844" to find out exactly what you were supposed to do with Barney. There's lot more as well such as "id" to search for an event id or "ms" to search the knowledge base.