5V Pins

I have a simple question. I have a voltage regulator on the board, so I have 5V and was wondering where an open pin is for supplying power to external drivers. I currently am getting it from an endstop pin, however am adding endstops, so these will no longer be available. What other pin number can I get 5V from?

Imported from wikidot

You can also use the 5V pin on the serial port