Matt.....Elaine and I went through the "too much stuff" mode when we first got ours. After a couple of trips we pulled the coach up in front the house and unloaded everything, inside and out, and then made 3 piles.....pile #1 was stuff we knew we didn't need, and would probably never use. Pile #2 was stuff we knew we needed, and had been using. Pile #3 was stuff we weren't sure about. After reloading pile #2 we went over each item in pile #3 and if we didn't both agree it should go back in we set it aside in the garage. After another few months of not needing, or wanting any of the stuff from pile #3 we got rid of it.
It takes a few trips, and the extended one you are on will go a long way toward those decisions becoming easier. You may find as time goes by that you don't need nearly as much as you thought, and you will see the mileage edge back up....
