NBA 2k13 - Quick & Easy VC
Play a key game in My Career, make sure to play really well. Save seconds before the game ends and exit, load up, finish the game. The VC gain will save to the server just before the press conference. When the conference starts hard exit the game.
Boom you have the VC and are still saved with seconds left in the game. Just keep loading and exiting at the conference for as much quick and easy VC as you want.