I do one child before and after school and I charge 15 a day. The reason I charge such a low rate is because the school's before and after program is only 19 a day and, to be honest, their hours are better then mine. LOL

Good luck! Before and after has it's challenges. It's less money then a full day's work. The kids are older so it's harder to keep them occupied and they fight a lot more then the little ones. But on the other hand, you are free to do what you wish all day between drop offs.

Check with your local school b/a programs and be competitive.