Fact 2053: Control click will highlight an entire word in VS
Sara Ford over at blogs.msdn.com has an amazing stream of tips and tricks with Visual Studio. She currently is on 256! A bunch of these tid bits about VS I had no clue were even in it!
One of my favorite tricks that most I've talked to aren't aware of is using the Immediate window as a debugger. You can do this during design or runtime.