Wow, the response to this has been great! Really cool tips.
Ok, I wanted to say a couple of things. First, I've got a nasty cold which as had me down for a couple of days (sympathy welcome please) and I've missed all of you even though I'm a noobie.
Second, I admit being puzzled for two or three of the earlier posts, until I realized that I hadn't really made it clear what I was asking for.
Third (I did say three things didn't I?), no problem Dopey, no offense taken!!!
First, let's all agree there aren't many of us cheapskates in this forum--after all it's very easy to drop 4-8 grand in a week and a half in the World, and we happily do it. My DW convinced me a long time ago that creating memories for our children (and ourselves) that last a lifetime are well worth the $$$.
I heard once that H L Hunt, Texas oil millionaire and once the richest man in the world had his lunch fixed in a little paper bag by his wife every morning before she sent him off to work. And Sam Walton drove the same old pickup truck to work every day.
Even the guy who gave me the "buy beer in the gift shop tip" flew his family over in their private plane. Go figure! (Incidentally, I brought my couple of beers to the pool in a plastic bag--warm Heinekin is fine with me).
I do agree with Dana and others, you can carry this too far. I admit that on our first trip, I did'nt plan (budget) well, annoyed my family for a couple of days with my constant penny-pinching, then realized I was putting damper on the fun and lightened up the rest of the trip. My advice since to friends going to the world for the first time--plan your budget--then add 50 percent and you've got it. Also, the envelope trick is great--we used it with Travelers checks, putting a days allowance in separate envelopes. If we didn't spend a days allowance, we put it in the next day's envelope.
Dopey came up with a wonderful word, tacky. I thought if I asked just for budget-saving tips, I would get the same-old, same-old, so I was asking (a little tongue in cheek) for those little "cheapskate, slightly tacky" tips that we all have (but might not normally admit).
Your responses were awesome. As I read them, I realized that some one on a tight budget could save a few HUNDREDS of dollars following these over a several day trip. Also, that a family on a very tight budget still might be able to handle a few days in the world with the right information and planning.
OKAY NOW, I GUESS YOU DIDN'T KNOW THERE WOULD BE AWARDS 
:
SECOND RUNNERUP: Goes to Pooh Bear--fixing your own toast and food in the food court--what a trick! To you a thimble of pixie dust...
FIRST RUNNERUP: Goes to markiepooh--conning the Disney photographers to take free group pictures of you is sooooo cool--in the category of I wish I had thought of that! To you--a shot glass of pixie dust...
AND THE WINNER IS...
FIRST PRIZE: Goes to karliebug!!!--making your own free salad complete w/ dressing at the fixins bar--Jack Benny would be and I am proud!
To you goes a cup full of pixie dust--I understand that's a lot so use it wisely! Honorable mention to Fireangel on that one as well!