What is the correct process of using a droplet as a development enviornment? Based on the documentation, I've read that I should create a snapshot, destroy the build so that billing wouldn't occur. Once I'm ready to use it again I can create another droplet and recover my snapshot to the new droplet. However, this hasn't been working for me. When I attempted to create the droplet (same zone, same config) and went to the snapshot tab of the new droplet, my old snapshot wasn't available even though it did show up in the Images tab (it stated that there are no snapshot available). Am I missing a step?