While looking for some cut and paste utilities for Visual Studios I found this great MSDN Magazine Article. 

Ten Essential Tools
Visual Studio Add-Ins Every Developer Should Download Now
James Avery

TestDriven.NET
GhostDoc
Smart Paster
CodeKeep
PInvoke.NET
VSWindowManager PowerToy
WSContractFirst
VSMouseBindings
CopySourceAsHTML
Cache Visualizer
Wrapping It Up

Get the article at the link below:

Ten Essential Tools: Visual Studio Add-Ins Every Developer Should Download Now -- MSDN Magazine, December 2005.