Division of labor

This isn't exactly a fight, but I hope the members of Couples Court will weigh in. We have been married for four months and desperately need to come up with a division of chores that is fair. So far I, the wife, do everything unless I ask for help with a particular chore. My husband will help me when I ask but he acts like he's doing me a favor and it's a one-time only deal. Am I going to have to ask him to take out the trash twice a week for the next 50 years? What works for other people?