up a washing line up between them for drying clothes. or they can be used to hook lanterns and lighting up in the ceiling.
all tents have door tie backs. they are usually a simple toggle and loop that holds the rolled up door in place and out of the way to keep the door open.
most tents have a point at which the end of the pole attaches to either the outer or inner tent, depending on the tent design. the systems vary, but once in place they are very secure.
outer tent doors with zips usually have a strip of fabric that folds over the the zip to prevent rain (and 