We are just outside Philly and do the drive twice a year. Over Christmas we are pressed for time and do the drive in two days. Stay the night in Florence SC then get to disney around 4pm the next day. We leave the no-tell-mo-tel each day round 7am. Over the summer we do the drive in three days leave each morning around 9am... We stop in Emporia Va and North GA. Get to Disney the 3rd day around noon. You can fly a cheap airline and pay very little but we like having a car so driving is our only choice. Renting a car removes all cost savings (IMHO). We drive 95 the whole way, the drive home is tough. Driving from VA to PA is a nightmare. You gotta hit Washington before 3pm if not...you will be sorry.
If you want, you can go the non-I95 route along the coastline. It will take longer and cost more money but likely will be more visually appealing...
Take your time, stop often for rest stops and the cheap gas stations are: florence SC, the I-95 service station in delaware, Kingsland, GA, Dillion NC and Kissimmee (
Walmart). We have a murphy and sunoco gas card. That's about it. If you are staying off site plan to spend $20 each time you park. If staying on site or if you are AP holder then parking is free. EZpass will cover tolls until you get to FL. Then you need a different pass. Some of the major highways in Fl now take EZpass but i am not sure which ones. So make sure to mark you gps as no-tolls once you get to Fl.
We drive around FL quite a bit when we are there, so i have a SunPass. It isn't necessary for the average visitor but we go so often, spending more then a month a year at disney, it just makes sense for us. If you need a car repair the shop at disney is not bad on labor but mark up parts a couple hundred percent. I use a shop in st cloud called Eastside car care 407-957-2415, its a tiny shop with two mechanics but every time i have taken my car there i paid what i would have if i was at home using my local shop. If you have a diesel then mobile oval auto & diesel repair (have not used them but have gotten their name from DIS) 407-405-2391
http://mobileoval.com
Have fun and good luck,
mark