We have one of the big water jugs, 5 gal, I decorated it with Disney stickers we got free from a mailing of some kind. We sealed the top, can't tell you how much is in there, just know I can no longer lift it, I have put bills in there as well. Much is pennies and a good assortment of silver coin.
I also have a Disney only checking acct. In there I usually put dollars, I give myself an allowance each payday, the money left over on the following payday goes into the Disney account that earns interest. I also deposit rebate checks into that acct. So far that acct has paid for our deposit for the next trip as well as a balance of several hundred dollars.