I typically set between 8 to 12 stands,of course some are hotter than others.There are some stands that I may hunt 4 or 5 times.I am a scent control freak like many of you and I will never hunt out of the same stand more than two sits in a row.I like to give stands at least a weeks rest between hunts.In some of the stands that are closer to human populations I am a bit less concerned because deer are a bit more accustomed to human odor.I still don't deviate from the previously mentioned strategy.