Size to Enclosure ratio!

Its beeeeen a while! So a little update lilly shed today and looking gorgeous as usual! As she is growing at an expedential rate i want to move her into a new enclosure as i am tight on funds right now and shes HEALTHY, EATING, and as gently as a kitten i am wondering the sort of RULE of thumb size to enclosure ratio! I know this is a common question but for those of you who know me i just wanted to check in an say HHEEEELLLLLOOOOO :D

here is an update mug shot of lilly after her feed today.
http://i351.photobucket.com/albums/q...-07-15_311.jpg


:colbert: For you the Hates!! :colbert:
Note that humidity is up because of the rain i am having here and the shed she just went through!
Note as i feed lilly in a different enclosure her tanks internal ambient air temp is low!
Note i know some prefer two hides on cold and hot! I know some prefer one hide in their enclosure! i know some prefer no hides in their enclosure! I know my snake eats and shows no signs of stress so don't hate on her ghetto hide!

Not sure what your looking for but a 32qt tub or thereof would be the best as far as low cost.

There seems to be many versions of the rule of thumb length ratios. So in efforts to be reasonable the biggest I have seen is the longest size should be the same length as the snake. The shortest version is the total circumference should not be shorter than the snakes length. The version I personally use (roughly) is the enclosures circumference should be twice as long as the snake. You can take what you will from that.