make sure pups been wormed every two weeks from the age of two weeks and date of when next need doing, i put this on an info sheet that goes with the pups, always something you may forget other wise. Also i have microchipped pups before if potential owners have asked for it although dont know why cos you have to register it in the breeders name then they have to change it to theres at a cost of 15 pounds so cant see the point but hey there you go lol.