What is the best tool to use to separate pins from connectors? I seem to be doing this quite frequently and I know a pin is sufficient, but looking for a permanent fixture in my toolbox.

 

I prefer to just use a medium duty, extra stiff paperclip. Just take the end that is on the outside and straighten out the first bend. the rest can be used as a handle and the pin part works great for releasing the catch on the pins inside the connector.

Or you can special order one of these from you local HD stealership.
Socket: SOCKET TERMINAL TOOL (HD-39621-27)
Pin: PIN TERMINAL TOOL (HD-39621-28)