What do you need BEFORE getting a puppy?

I know it's the nature of the sub, but for those who have lived through the puppy stage, what would you say are needed items upfront or at the start of getting a puppy? Beds, towels, bowls, chew toys, etc. Anything to make life easier and be proactive.

And any advice?

I can say that it gets better, usually just after you think of quitting!