Ft Wilderness' Hoop Dee Doo Musical Revue, my favorite discount!
Cast member discounts are a wonderful thing. In Walt Disney World they can often seem few and far between. There are often small print associated and block outs dates, so please do your research on your discounts! My favorite type of discount usually is in the form of food. Unfortunately, when it comes to food and quick service restaurants, we don't really get them. So when you're just planning a short trip into the parks and need some corn dog nuggets from Caseys, you will be paying full price.
The best advice I can give you about discounts is to always ask because it can't hurt to try, and to educate yourself on the hub. There are some awesome discounts out there, but sometimes they will have block out dates. Like on the exact days that you have a friend visiting and you want to use it.