I like to have something to watch while I eat. If I don't already have something I want to watch (or only have something longer like movies) I might go for rewatching a random episode of any of the Adult Swim shows. But I gravitate to ones I've already seen a lot or episode names I remember. There is no simple way to actually chose a random one.
That's where this tool comes in. Give it a directory and a list of extensions and it will scan recursively then allow you to open a random file. I actually built this really quickly one day just to take a look at the interface of the Visual Stuido 2010 Beta I had installed.