To estimate the latest date your delivery may arrive, look at each item in your Shopping Cart and find the one with the longest "Usually ships in" days. Count the days, starting with the day you will be placing the order, and count forward on the calendar, but DO NOT count Saturday or Sunday. Then, add the number of days you chose for having your order shipped and count forward on the calendar. Again, DO NOT count Saturday or Sunday. (Although USPS does deliver on Saturdays, we cannot guarantee that this will occur.) You now have estimated the latest arrival date for your delivery.