1). If you're not doing rewards programs yet, give them a try. You can get details from the rewards forum on these boards. Programs offer anything from Disney Dollars to restaurant GC's as well as cash via checks or Paypal. I've been doing them for better than two years now and, while they are not as profitable as they once were, you can still shave a few dollars from your budget by doing them.
2). If you've got good credit and do not carry a balance on your cards from month to month, consider some sort of cashback credit card. Use it for every purchase you make (gasoline, food, Dr's. office, etc.) and pay any large recurrent bills with it (like your telephone bill, gas and electric). The advantages are two-fold, you only have to write one check every month and you get a percentage of what you spend back in cash. Any cash you get back should be earmarked for Disney.
3). Have a garage sale. Get all that old stuff that is cluttering up your basement and attic out and dust it off. Sell it cheap. You'd be amazed at what you can make! And you free up storage space for more Disney stuff.
4). Eat in and buy Disney Dollars. Everytime my kids want to go out for pizza, Taco Bell or McDonald's, I remind them how much can be saved by eating at home. Just cutting our take-out bill in half saves almost $200 per year. I budget $40 per month for fast food. If we stay under budget, I use the balance to buy Disney Dollars so that I can't spend it elsewhere.
5). Become the coupon queen on your block. I always make sure that I cut any good coupons from the newspaper every Sunday as well as from the coupon books the kids sell every fall for school. If there's a BOGO or two-for coupon to be used, I've got it. My local grocery store tallies your savings at the end of the receipt. When I get home from the grocery store, I just add that amount to an envelope to be used for more Disney Dollars.
I'm sure there are others but at least these will give you some places to start.