For my wife and I, it seems that we have sex about twice a week. If it was up to me it would be more, but she really doesn't have it easy around here playing house and taking care of the boys. Most of the time she initiates, but I think she knows i'm always ready. One in a while I will ask/beg, if I think I have a shot. As far as the tired/move around all day part, it's sex not participating in a triathalon.