Hi Cindy!
RideMax is a program that you download (for $14.95) from a website (Ridemax.com) that lets you schedule what time you should do each ride to maximize the number of attractions you can fit into your day. We purchased it last week for a trip we're taking next week, so I can't say how helpful it actually is, but it's been a lot of fun playing with it! It allows you to input the times you plan to arrive and leave, and schedule up to two breaks during the day (which we used to schedule shows, like Aladdin, which aren't included in the program). It gives you a very detailed schedule, including times you should pick up FPs and the walking time between each attraction. It also takes into account how crowded the park is expected to be each day.
Oh, and the most important thing (for me, anyway): they have a money back guarantee, so if you use it at DL and it isn't helpful, they'll refund your money.
Hope that helps!