I read an interesting article yesterday about this topic. In an attempt to curb high divorce rates, Relevant Church head pastor Paul Wirth issued a challenge for his married congregants: Have sex every day for one month. It may sound silly at first, but if you think about it, we get so busy in our lives that sometimes we forget the good things that are standing/laying right next to us. So in answer to your question, it's not unrealistic to have sex everyday but it will definitely take some work (on both partners' ends). It means taking care of each other's physical as well as emotional needs in order to achieve this goal.