The best way to do Disney is to be related to my brother. Without him so so much of our recent trip to Florida wouldn't have been possible. Free park hopper tickets were a blessing I never ever ever saw coming. However, there are MANY other things we did to save money that I'll share with you. Your kids (probably) wouldn't know the difference and they can add some magic without making you broke. I also added some general tips.
Thrift: If you can, camp. There is a campground that you can stay at and it is a fraction of the price of a hotel. Especially if you own a RV/camper this is great. You still get to use all of the amenities (nice pools, campfire with Chip n Dale) and Disney transportation.
At Christmastime in Hollywood Studios they have a huge light display. It is set to music and a lot of fun to see.
My MIL bought all the kids red Disney shirts that they wore the first day and they were nice because they were all easy to spot. I also used them on the plane on the way home for airport ease. Tip: Dress your kids in the same color!
"My mommy lost her mind and I LOVE IT!" Ok, really this was a once-in-a-childhood trip to a magical place. I let go a little and let them have fun.
LMMs favorite thing at the Lego store was where you build a race car and race. An employee oversees it and calls the winner. There are also Duplo tables for the younger crowd.