I have this problem aswell, o/h does some deliveries I always ask customer If I can deliver early ie 8 8.30, normally not a problem, then if I get orders for same day delivery, I ask if I can do them when I close (5.30) again they are fine with that, because they have left it so late to order, they are just gratefull you can do it. If I have a few deliveries in the morning I put a note on door saying on delivery. My hours are 9-5.30 monday-Friday Sat 9-2