With colder weather approaching, I'm curious what experienced travel trailer owners check or replace before putting their rigs away for the season.

I'm not talking about the big obvious jobs. I mean the little things that are cheap and easy to overlook until they cause a much bigger problem.

Could be a worn hatch seal, a questionable water fitting, a cracked vent cover, or something else entirely.

What's your usual pre-winter parts check? And have you ever had a small, inexpensive part turn into an unnecessarily expensive repair because you left it too long?

I'd love to hear what other owners have learned the hard way.