Torch and easy-to-put-on shoes for letting them outside in the middle of the night.
water and food bowl
collar and leads
pet insurance
worm/flea tablets - vets have health plans for this
puppy classes - popular ones get booked up early
registered at vets
anti- chew spray - bitter apple spray
spray for cleaning up after accidental wees
toys, chews etc
container to store food and treats in
treat bags for walks etc
puppy pads - we didn’t use these either
read or look at your tube videos for early training ideas - be warned there’s lots of different ones with conflicting advice. Ones we used included Mcann, kiko pup, etc
I agree, be prepared for puppy blues. Puppies are cute but are monsters. Also be prepared that they bite a lot, are full of energy, relentless, and you’ll be exhausted for a while.
Photographs - for us, of course!