What are your favorite additions or improvements?

[Loneoak]

I have found out quite a bit over the years from other people on this and the SOB forum I used to belong to. People mention things you never knew existed but that improve your RV experience. I would like people to share their favorite ones here, so others can benefit.

Here are mine:

Valterra Valve - the best, easiest and cheapest fix for leaky tanks

keyless entry - basically a combination lock which replaces your regular lock. Great at a campground so you don't have to take your keys with you. Our last trailer came with one and we found it so handy that we bought one for the Monty before our first camping trip.