Thats why I have minimum due each week, especially if the parents sched varies (dif days each week) if they are using 3 or more days each week, they must pay for a fulltime spot, due to the fact that I will not be able to find anyone to take the days they are not in attendance. IF they are using the same days each week but 3 or less days, they are required to pay a part time minimum. that way, I get paid a solid income each month