Jodi1980: You can drive just about anywhere with the carts...once you get into FW you can't drive your car anywhere because there's no where to park it except where you're staying (although they do have 15-minute parking at the store). we drove all over FW just checking out the different loops (cabin loops and camping loops), and also to the marina to catch the boat to MK. My then 2 yr. old loved riding around everywhere (maybe even more than going to the parks). Sometimes we'd get the urge to just go to one of the little stores on property so we'd jump in the golf cart and go...very convenient.
CarolinaBoy: I believe it still costs $45.58/day (that price includes tax) to rent a cart...if you rent for a week I think it was $287.16 total for us, so you save a little. You can call the bike barn at (407) 824-2742. Make sure you reserve one before you get there because they're known to run out.