If you REALLY want to be crazy, you can use shipgo.com to ship a box to the resort (via FEDEX or UPS). You can buy a 20% GC on their site now for future use.
I packed anything heavy, snacks and decorations in a large suitcase which shipgo arranged to FEDEX to AKV in October and it arrived a few days before we did. The folks at the desk happily retrieved it for us at no charge and refused a tip! It cost $105 with discount, but it enabled us to fly with one carry on, a tote bag and a backpack. We moved to OKW for a long stay after a couple days and then opened the suitcase. Tip: you must use a TSA approved lock.
I went to the Celebration PO and bought three of the one price boxes and shipped all our Halloween stuff back home. I shipped a $ store kids scissor and roll of packing tape to FL with my other stuff, so I wasn't scrambling to pack it up. In fact I was able to share my scissors and tape with some ladies at the PO who were doing the same LOL! It's not the cheapest strategy but it worked and I will do it with every trip!