I’m a fan of the spray in liners.
I don’t think I can have another pickup without a tonneau cover again. Not that the one I had was anything great but it made a world of difference keeping the bed tidy. The bed rail system or whatever it’s called is another feature I wouldn’t live without. It’s super convenient and I used it all the time. Also 90% of the time mine had a 2x6 riding in the slot in the back. Makes for small hardware store runs or groceries a breeze, not worrying about a box or bag sliding all the way to the cab.