The easiest way to toggle / next bookmark in Visual Studio

Shortcuts:
Toggle Bookmark: Ctrl + K Ctrl +K
Next Bookmark: Ctrl + K Ctrl + N

Tips:
You can find the above shortcuts on the bookmark menu, but it is NOT the easiest way to do that.

The other Shortcuts:
Toggle Bookmark: Ctrl + F2
Next Bookmark: F2
(The key mapping is "Visual C++")