I thought a thread about enclosure "don'ts" might be wise, to save some people the hassle of finding out for themselves that somethings don't work.
I'll get things started:

When using fake vines be sure to keep them a minimum for 4 inches/ 11 cm off the bottom of the enclosure. Otherwise, they will use the vine and leaves toilet paper. There will be skid marks all over the place Cleaning poop off these vines is a pain. Don't ask how I know