I couldn't wait until I could lose the diaper bag. Now that we're out of that stage, I find myself packing my LandsEnd diaper bag w/ all our toiletries. Works great with all its' pockets and dividers.
I also pack a mesh bag I purchased from
http://www.saltwatercanvas.com/meshbags.htm I can hang all the wet bottles, razors, etc and let it dry. Have a second smaller one for all the tooth brushes and paste. If you look around the above link, you'll find beach bags. I put all our bathing suits, goggles, sun screen, etc. in one of these (I have the whale bag) and our swim gear is ready when we are. Because its' mesh, it's also good for the gear when wet. (BTW, I have no vested interest in the above e-store.)
Sharper Image had a refurbished travel alarm w/ soothing sounds. We need white noise and this provides great choices.
We have an 8 1/2 x 11 sheet w/ all the basics on it. (Quick itinerary, ressies, phone numbers.) For day to day use, I love my Passporter. I usually carry a folder to put my papers in. Resort news, itinerary, maps, etc go in there.
At home, I have an under bed plastic storage container. We store our lanyards, GOH pins, autograph books, guide books, spinny things that light, etc. If we want to relive our trip, or get ready for the next, it's all there. In the past, I've purchased WDW themed party wear (plates, napkins, whatever) on clearance and put it in the box. When we go to WDW, I pull it out either before to rev up the troops, or bring it w/ for fun.
Should you be so fortunate to find pins on sale before the trip, purchase them and hand them out during the trip. They can trade or keep as they wish. Acutally, I've purchased pins I thought they wouldn't like, to encourage trading. Worked once.
My dds are always given DDollars before the trip. They know how much they have to spend, and that's that. If someone finds something extra special, I try and purchase it on the sly, and save it for a birthday or Christmas.