Magnets and the re-fillable mugs! Not just the ones that you get at the resort; we also pick up the single fill ones that you can (....could, since that might have changed since I was there last!) in the parks.
We used to buy a LOT of stuff and most of it ended up either lost, misplaced, or collecting dust. So we have been trying to focus on the stuff that can be re-used when we get home.
This year, for the first time, I am also really excited to get a silhouette done on Main Street!