I use the Iris pad holder and get
washable pads which are much cheaper you don't have to empty a tray and are reusable, plus they can't eat them. Have gotten the Buddy Belt for harness and a leash, puppy food, treats, Nutri-Cal, toys - chew toys,
love the Iris Pad Holder - you can find it on Amazon - it folds in half, so if you have a male and are inside, he won't spray the wall. It comes in two sizes, I got the larger one so they can hit it pretty good.
Recently got a Puppy Training Pet Apartment - PTPA - and so far so good.
I also got a stroller.