Sneakers, what's that? We wear tennis shoes which can be cross trainers, basketball shoes, or running shoes. They are Tennis shoes, period. :) You say travel trailer, everyone thinks you're talking about a mobile home or trailer. If you go to a campground in it, it's a camper except when it's a tent. If it's a travel trailer its a regular trailer, if it's a folding trailer, it's a pop up, if it has a motor, it's a motorhome. If it's on a truck, it's a truck topper camper.
Guess different parts of the country have their own language. :)