While not exactly VSTS specific, I thought I would post this anyway, becuase the snippet editor is really quite handy

The Visual Basic Snippet Editor is shared source project, so contributions from members of the VB developer community are welcome and encouraged. If you stumble across an annoying bug or you think of a cool new feature, don’t hesitate to download the source project, lay down some VB code, and check in your changes so that others can benefit from them. The source code can be accessed at the VB Snippet Editor Workspace on Gotdotnet

You can download the snippet editor from the Microsoft website here  (326kb)