Most developers are familiar with using Ctrl + Space for intellisense, or Ctrl + Tab to cycle through open windows in Visual Studio. But Visual Studio is really keyboard friendly, and you have keyboard shortcuts for pretty much any functionality that is exposed via the various menus. You can configure them according to your preferences under Tools->Options->Environment->Keyboard. Here are 10 areas that you should definitely be familiar with:

• Format Document
  Ctrl + K, Ctrl + D: Formats the current document

• Collapse/Expand code
  Ctrl + M, Ctrl + M: Collapse/expand current element
  Ctrl + M, Ctrl + O: Collapse all
  Ctrl + M, Ctrl + L: Toggle all Outlining

• Go to Definition
  F12: Go to definition of current code element

• Smart Tag
  Ctrl + .: Open Smart Tag to allow adding missing namespaces or refactoring code.

• Quick Launch
  Ctrl + Q: Focus in Quick Launch text box.

• Clipboard ring
  Ctrl + Shift + V: Cycle through clipboard ring.

• Navigate in code editor
  Ctrl + ]: Navigate to matching bracket
  Ctrl + –: Navigate to last cursor location
  Ctrl + Shift + –: Navigate forward to cursor location

• Comment code
  Ctrl + K, Ctrl + C: Comments selected text
  Ctrl + K, Ctrl + U: Uncomments selected text

• Bookmark
  Ctrl + K, Ctrl + K: Toggle Bookmark
  Ctrl + K, Ctrl + N: Go to Next Bookmark

• Enter Full Screen
  Shift + Alt + Enter: View Code Editor in Full Screen