We use those disgusting, nasty pee pads
Seriously, we do.
All five of my dogs are 100% house trained. The chihuahuas go outside to poop/pee just as much as Rory does, and they're expected to poop outside.
However, the chihuahuas pee far more often than Rory. I like giving them the option to have a place to pee if they really need to. We have all wood/tile floors, and the chis pee ON the pads. They don't leak or anything. They don't smell. They're not in the way or anything. Whenever people come over, they always comment on how clean our house is "especially for having 5 dogs."
When we're not home, the chis are confined to an area with access to water and pee pads at all time. It makes me feel better giving my tiny dogs a place to relieve themselves when they need to, rather than having to hold it in.
I think there are a lot of misconceptions when it comes to pee pads. Either your dog is house broken or it isn't. Whether it's peeing in a yard or on a pee pad... if your dog is having accidents IN the house, it is NOT potty trained and it's the owner's fault and NOT the pads.
Also, we never have any issues going to other peoples' houses. It's no different than being at home. Since my dogs are potty trained, they know not to pee in someone's house. My parents actually request that we bring a couple of dogs with us when we visit with them. lol.