New puppy tips

Me

I’m finally getting to pick up my baby boy this Friday and I was wanting to get some tips and advice. I’ve had dogs all my life and currently have two others but they’re 8 and 10 so it’s been awhile. I’ve already picked up some toys, puppy pads, a leash, harness, and treats and plan to get more things including his food. But what else would y’all suggest I get? And any other advice would be great.