There is no standard list of things, other than the stuff needed to setup your trailer, which you mentioned a few already..
I take way more stuff than I ever need or use, but feel better having it than not..
I did the driveway thing to figure out what I needed inside the trailer and what I took out of the house to use, I set out to get the same things that just stay in the trailer.
That's the real trick..  Outfit the trailer so all the stuff in it just stays in it and you don't have to worry about it anymore.
Basically, the only thing that goes in/out of the trailer is food.  It even has it's own set of clothes for both of us, so really the only thing we need to load in it for any long weekend trip is food.
I toss in my tools and other stuff into the bed of the truck and that's about it..
I do have a check list and my wife has her own check list that we go thru and check off to make sure we have everything and that's worked out pretty well.
Most of the stuff on it is personal stuff just to make sure it gets in the truck/trailer and that things are done to the house to secure it for our absence.
So, the real answer is, you just gotta figure it our for yourself! :)
Mitch