I have to respectfully disagree with everyone and say use the car! I have flown to WDW every visit except the last, and used Disney Transportation. Our last trip, we drove, and took our car everywhere and enjoyed it much more! We didn't have to spend time waiting on busses, it was much easier going to other resorts for PS meals, parking is free everywhere if you're staying in a resort, and since you're going in a couple of weeks, during a slow time, traffic won't really be an issue. We especially liked it because we had a child with a stroller, and didn't have to worry about lugging it on the busses. It's also nice to keep things in there you might need later in the day (jackets, etc.), and you can just run to the parking lot to get them (Admittedly, hard to do at MK, but good everywhere else.). Often, we would get to the park before opening, and we would be able to park very close to the entrances, so when we left, there was no need to use the trams. We could just walk to the car, avoiding tram and bus lines. You also don't have to wait on a crowded bus for your stop to finally arrive at the end of the day when you're tired and just want to get back to your room. I know everyone feels differently about this, but this is just my 2 cents.