Can’t decide with OS to use on your RPi, or perhaps you are like me and constantly changing the use for your RPi. Well this Article can help where it helps explain how to put multiple RPi OS’s on one SD card (or if you are like me, you just have multiple SD cards).
http://www.makeuseof.com/tag/how-to-install-multiple-oses-on-a-single-sd-card-for-raspberry-pi/