There is a service that will ship your luggage, necessities, etc for you to your destination. Its sometimes cheaper to do this than to check all that luggage and pay airline fees, especially if you have alot. As well, with the little ones, it comes in handy so all you need to take is a carry on or two. No waiting for bags once you get off the plane is also a big plus.
I can't remember the name of the service that does this for you, but they will send it directly to your hotel once you let them know when your hotel arrival will be. This way, its not just sitting around at some hotel unattended either. They featured this on the news here in MI recently and said it is a highly recommended thing to do these days.
I'll see if I can find the info or a link, and will edit my response if I find it, but in the meantime, try googling a luggage delivery sevice (I think thats what it was termed) to see if you can locate it as well.
Have fun in Disney.....
FOUND ALREADY :
DeliveryServices.Local.com
Also, the suggestion from the news was to do it yourself via UPS or Fed Ex, which will save you the fees associated with having a company schedule the shipping for you. Either way, make a few calls around and get a good price.....everything that I've read said that this is a great way to give yourself an added break for vacation. You could also contact your hotel and see if they recommend a company or have any suggestions, since they probably deal with the return-home shipping circumstances all the time.