Visual Studio 2008 Tip of the Day
Sara Ford keeps an excellent blog with a column on Visual Studio 2008 Tip of the Day. Here's one you might enjoy: How to select a Start-Up Project when you have multiple projects in a Solution. Why would you use multiple projects? Often you want to a 'To Release' project containing what you intend to release and a second project that would test the first project. That way when you release the first project you are not pulling the testing harness out of it ... and maybe causing unintended things to break.
She also talks about testing and other topics in her Channel9 Videos like this one ... What Does it Mean to Test? If you like to break things, maybe testing is for you.