I use a Taylor V-cable. Similar to the ones linked above, only instead of just an on/off, it also has a volume control. I originally bought it to have volume control for a GSmini with the ES-Go (passive) pickup, and found it was such a good solution to plugging/unplugging that I use it with all my guitars.
http://www.sweetwater.com/store/detail/VCable250-10/