One of the simplest conveniences to add to your popup camper are storage hooks. Simply screwed into the top of your swing down galley, these provide a convenient place to hang a hand towel or even a trash bag. I installed several to mine.
Here is where we hang a hand towel (very thin for fast drying).
And here’s a second hook installed on the side of the swing down galley to hold a small trash bag.
This is a super cheap yet convenient mod. You can get a five-pack of storage hooks from Amazon for less than $16.