If you have school-age children, you know there's a lot of time and effort in getting ready for back to school. It's difficult enough when you have a good relationship with your co-parent, but if you are separated, you may find all of the tasks and expense falling to you. If you are receiving child support, things like clothing, shoes and incidentals are generally considered to be included. In a shared custody situation, theoretically both parents are taking on some of these expenses. I have also helped parents negotiate back to school and extracurricular expenses, perhaps as a flat amount or based on income percentages. Another reason to try to work out an agreement with your spouse: you can better make plans which work for your children!