We (family of 5) did POR last September, and I will vouch for this... it *WAS* crowded. Those rooms are TINY. Luckily, we spent very little time in the room.
First thing when I got there, I unpacked the suitcases. Hung up all of DH's and oldest DD's and my clothes. I had most of the little kids' outfits in Ziploc bags, so just threw those in the drawers, along with everyone's undies and jammies and stuff. I didn't find that the clothes in the baggies ended up too wrinkled, although I didn't store anything that I felt would wrinkle badly in the bags. If the little kids had an outfit that was light crisp cotton, or something very easily wrinkled, I hung that up too. Hanging up most of our clothes freed up room in the drawers for toys, snacks, etc. Tip #1
BRING YOUR OWN HANGERS! I knew there wouldn't be enough provided, so I packed several from home.
We stacked our empty suitcases, one inside another, on the floor at the bottom of the closet area. We then used the empty suitcases as dirty laundry hampers.
It worked!
I would DEFINITLY second the suggestion to
BRING AN OVER-THE-DOOR ORGANIZER! There is VERY little room on that little shelf over the sinks, so that will come in handy to store bathroom stuff.
There is room around the TV in that little armoire. That's where we stacked our guidebooks and planning notebooks and such.
Really, we did end up with a lot of piles around the room. The kids' backpacks were piled behind the table, the suitcases were piled in the closet, the dirty clothes were piled in the suitcases. It was a REALLY crowded room, especially when the trundle bed was pulled out... barely any room to walk. BUT. POR is a
gorgeous resort, we don't regret our stay, even with the crowded conditions. The grounds and the pool, and even the ambiance are just lovely. I *loved* listening to the Dixieland jazz that is piped through speakers hidden in the landscaping as I strolled on the darkened pathways....
One hint, which I am sure you already know. If your kids bring stuffed animals or dolls from home, or if they buy them in the parks; leave them out in the mornings before you leave for the parks. Leave them scattered around the room, in the beds and on the table. Mousekeeping will most likely arrange them in cute ways when they tidy up the room. We came home to find our stuffed friends arranged on the beds watching TV, waiting for us at the window, or reading our Disney guidebooks.