WPF Snippets
Snippets is one of the coolest features of VS. To increase productivity using WPF, the following 2 snippets must be in your collection:
Dr WPF's Dependency Properties
Dr WPF has a excellent collection of snippets to create various dependency properties and attached properties. This is a very complete set including creating DP's with default values, framework property options, property changed events, etc...
Available from here
IdentityMine's Nerd+Art
IdentityMine, creators of blendables, released 10 very cool snippets (Nerd+Art)... including creating custom controls, adding sounds, creating custom panels, modifying storyboards, etc...
Available from here
