I love resharper it makes refactoring other peoples code also most fun.
http://www.jetbrains.com/resharper
And ghost doc is another great tool.
I would love to use redgates sql prompt but my company wont pay for it ? so free tools are the best 🙂
My question is what other great tool are in the c#/sql dev toolbar?
You can find a lot goodies by reading Scott Hanselman’s tool list.
Other tools I would ad to that list: