I like the task list feature of visual studio. It's very convenient to be able to prefix a comment with TODO and have it automatically appear in the task list. A great way not to forget to fix those little issues that would otherwise be very easy to lose track of.

However, for some reason it had not occurred to me until today to see if I could add my own prefixes. What do you know! It's not only possible, but not difficult at all.

Here's the MSDN article that describes how to do it:
http://msdn2.microsoft.com/en-us/library/zce12xx2(VS.80).aspx