I would count everything, although the mortgage I would put an * by it. If I was deciding if I could "afford" something, I wouldn't really count it, it's just there.
DH and I were both lucky to make it through college without needing student loans, so the only debt we have is the $3K I mentioned on the car. Plus we have $2K on a 0% APR credit card. We could pay off everything we owe from savings, but with the no interest, and our car loan is only 4.9%, it's better for us to grow our savings. The plan is to buy a house in hopefully less than 2 years. That's why were moving to Denver in March. We had to find someplace we could afford to do it.