We are going to Orlando - FL and staying in Holiday Inn Resort Lake Buena Vista for 5 days. They say that they have shuttle services for disneyworld, universal studio as well as sea world. These are the places that we will actually intended to see. However i want to know, how stressful is it to wait for shuttles. Will it be good idea to rent a car instead? Renting a car is costing me around 500 bugs so i am just confused what should i do. I want to enjoy this vacation without any stress but at the same time don't want to waste money unnecessary. Please suggest. Please please please.