Brian Scott has developed some good useful tools. One is Cropper, a screen grab utility written in C#, the other which is really a gem for me is Relational ListControls, a user control to manage interaction between dropdown lists.
Another plugin for Visual Studio is Style Cleaner. How many times do you have to remove all the style attributes VS add to any Table tag if you resize it in the IDE ? This stuff will remove easily any style attributes from an HTML file.
good job Brian