I'm going to be crate-training the puppy to go outside, so I can't rely on the puppy pads. I prefer to train to go outside so the puppy knows it's not okay to go inside the house, including other people's houses. I always wonder what owners do if they're at someone else's house and the puppy is peepad trained only - maybe just carry peepads with you? I guess I'll keep an eye on the puppy and just make sure he's pooping regularly. I'm probably going overkill thinking about this stuff. Actually, I know I'm going overkill

Thanks so much for the info everyone.