We've done 42 trips so far and got our packing down to a science, all on paper, necessities that always go and other items by the length of the trip. Clothes and that sort are by length of stay, we will never do laundry on a trip, as for essentials, here's some of ours: portable DVD player and DVD's, WDW resort TV is awful and we use it on the train trip in. Corkscrew, small tool kit, power strip, extension cord, headphone splitter and extension cord for DVD player, spare batteries, all chargers for camera, cells, Ipods etc, our yellow 7 year old Disney ponchos, zip lock bags for food and ice, books and puzzle books and magazines,. The usual items for personal hygiene are always loaded and replenished after every trip and ready to go when we are, say with deodorant, shaving supplies, toothpaste etc. And we go as far as only having vacation clothes that only go to WDW so it's real easy for us to pack for a trip and not forget anything. It's harder for us to go for a weekend 175 miles to our sons and daughters home than to WDW. I also have to be packed and zipped, list checked off at least 2 weeks before we leave, hate last minute thoughts. Then when we return home, I go thru my stuff, see what was used and quantity against the packing list and adjust where necessary or add to, east piesie for me to go to WDW, wife has a struggle and I don't get into that fight, she has her way, I have mine but we try not to duplicate any items we can share. I always tell her, take whatever you want but you have to haul the bag and I'll haul mine.