I just installed the productivity power tools from http://visualstudiogallery.msdn.microsoft.com/d0d33361-18e2-46c0-8ff2-4adea1e34fef.
Productivity power tools are set of extensions to improve the usability of visual studio designer. One of the major extension is the all new Add Reference with multi-targeting. Excellent way to add multiple references at once.
Another extension is the new Solution Navigator to search the files in Solution explorer. This will search the files in solution.