I have a maximum 9 hour day but the commute in our city is nothing as crazy as the commute in Toronto so I understand if you make 10 hours your maximum day. But make it clear to your clients that you do NOT want overtime and they will find a way, trust me. There are grandparents who can help, aunts, uncles OR they will take advantage of your good nature. Don't allow that.

My fee is $5/half hour for an early opening before 7:30am or late after 5pm, my closing time, or over a 9 hour day.

My stat/closed days are listed in my contact so parents can make sure they have them booked off with their employers. I explain it clearly to my clients, that payment is due in full 49 weeks of the year no matter if there are sick, missed or stat days. No questions, just full payment every week except for my vacations.