Hello guys! Since I may need to move almost every one or two years for the next few years, tub is a good choice for me compared with big rack system or pvc cages. I currently use http://www.sterilite.com/SelectProdu...=305&section=1 This for my snakes, but they are growing and they're around 800 grams now, I want to replace it with a bigger tub, which I can also enrich the environment for them. However, I checked many tubs in the grocery stores and find that most of them seems not very escape safe, for some big tubs, they only have two latches. May I have some recommendation about bigger tubs? And I see people use binder clips to prevent escape, but how big and how many should we use for a certain size of tub? Thank you so much!