me, my husband and 6 year old son are going to WDW for the first time in October (7 days/6nights)My son will have all his stuff in a carryon, then my husband and are are gonna share a checked bag.we thought about buying each of us a carry on sized suitcase so we dont have any checked luggage on the way down, but that would cost more than the $25 checked bag fee. we are planning on bringing a big empty duffel in our suitcase to pack our souvenirs in to come home. we are planning on buying a LOT of souvenirs and doing some christmas shopping while in WDW too. But then we have to pay to check the duffel on the way home, but again the $25 fee is less than buying another carryon suitcase. we are also going to carry a back pack on the plane so we can put any fragile items in there on the way home, as well as our son's medical equipment. does this sound like a good plan? any suggestions?