Every Day Happy is probably the best 'diaper subscription' service out there. You get really good bang for your buck by subscribing to their diapers and wipes delivery thanks to the generous quantities of baby supplies they will send to you each month. They have packages for diapers and wipes and also a separate package with essential baby products like diaper rash creams and so on. After testing out their stuff after getting my free trial package a couple months back, I immediately subscribed for their monthly deliveries and have not looked back.