I mostly do full day. My afterschooler pays $75/week ($15/day) every week regardless of attendance, and even when I'm closed for stats. March break, Christmas, pd days or storm days they pay extra (to make a full day rate) if they attend. Mostly they pay the Friday before, storm days they pay at the end of the week. Summer is different though. I require full day rates M-F for the whole summer if they come at all. Otherwise they have the option to pay a deposit for September, and no fees for the summer (easy to find summer-only kids here).