retail will always yield the same complaints no matter where you work or what you're doing. that's why no one should stay in it for more than a year (unless you're crazy, masochistic, or both). i hope things get less stressful for you. it could be worse: you're not in food service or at a job where health and safety is a prominent issue.
i hope i never have to work a job of that caliber again. the amount of stress involved in being a bookseller, a cd clerk, a waitress, being in the position i am now, where i work for myself and it's wonderful... i pray i never have to go back.