My sister, Mom and I tried to do too much in one day last May when we visited Disney World. It was my first visit to the parks and to FL. We are So.CA natives, so we have always been used to the more compact size of Disneyland. Luckily, my sister now lives in FL not far from the parks and she knows, after many visits to Disney World, that 50+ age legs and stamina don't work quite as well as they used to when you try to do too much. While walking through the Magic Kingdom in 100+ degrees heat and high humidity, it became quite apparent that we needed to concentrate on inside, air-conditioned attractions. The inside attractions were wonderful and that's a tip for very warm days, but walking in the crowds between those attractions was difficult for many guests. If you haven't been to Orlando before, note that it can be very hot in early May and its NOT too early for tons of kids to be taken out of school early for vacation there. We were under the impression before we went that children would still be in school in early May so this would be a good time to go to the parks. We went during the early part of the week and the parks were already packed with people from all over the world--tons of kids, too. Be SURE to drink plenty of water the night before and in the morning even before it gets hot outside. Avoid sodas that will dehydrate you while walking in the park OR follow those sodas with lots of water. That will cut down on leg, stomach and general body cramps. Those bottles of water with the red heavy-duty Disney straps that are available in the park became a continuing and constant fashion accessory for us thoughout our vacation and are well worth the money. Keep refilling those water bottles! When you get home, you can still enjoy using them. Disney never goes out of fashion and the strap will start many conversations about your trip when other people see you wearing it. Another thing we found helpful is to make sure that everyone in your family who can takes vitamins that contain at least the RDA of Cal/Mag and the vitamin B's. for several weeks before beginning a trip where they will be doing a lot of walking in warmer conditions. It helps with the leg cramps that children often get. Between that and pushing water rather than cokes and other sweet drinks, we found that it has helped. Back to our story.. After leaving the Magic Kingdom and "enjoying" another very steep climb up to the monorail train, we headed for Epcot. My sister, who suffers from an old field hockey ankle injury, had an ankle that looked like a balloon by then! She decided that she had to throw in the towel and rent one of the motorized scooters that are available. That idea sounded good to me! Since she had never done that before, she wasn't sure of the cost. We were in for a pleasant surprise! The carts are located close to the front gates of the parks where families rent the strollers. In early May, they were charging $40 per day to use the electric-powdered carts--BUT you get $5.00 back at the end of the day! Not only that, but if you leave one park for another, you take your voucher with you and it doesn't cost you anything to get another cart at the other park. They will even call ahead to make sure the cart will be available and re-charged for you when you arrive in the next park! You can do this all day as you are park-hopping and you don't have to worry about taking the cart on the monorail with you. Sometimes they have a special deal that if you are staying at Disney World, you can extend your cart rental at reduced rate for the next day. Another tip---you can call Disney World from wherever you are staying and have the cart(s) waiting for you when you arrive at the rental building. What a deal! Our mom is 77 yrs. old and can still run circles around her children. It took us awhile to talk her into renting a cart for herself, but her aching feet and our uneducated logic, finally won out. After a very short instructional session by one of their wonderful Disney helpers, who put our names on each cart so we could ID our cart, we were off. We had baskets for our purses, cameras and packages! It didn't take very long at all to learn to operate the carts. In some of the attractions, you can take your cart into the building and park it and in others, we chose to park outside in areas provided. We had more fun riding around that evening in our carts than we did in any attraction at Epcot! From that day on, we have sworn that we will never try to walk through another huge amusement park like Disney again. We got to see more of the park than we could have done if we were walking, we weren't hurting and uncomfortable (and cranky) halfway through the park and we had a great time. For any senior citizen like the three of us, and/or those with a chronic injury or illness, swallow your pride and don't try to "walk the parks" if you have physical issues. You will enjoy it so much more if you rent a cart and ride. People throughout the park smiled at us because we were grinning and laughing. You have three seniors that give the carts three big thumbs up! Nan, San Diego, CA