Ok thanks all. I guess I will stick with getting there early. I will have to get up way early but oh well, we are going to Disney !
My wife thinks I'm a bit crazy. When leaving our home, I account for:
Travel from home to airport: 45 minutes without traffic
Potential traffic: 30 minutes
Extra time (to account for things like small accidents or flat tires): 75 minutes (basically double travel and potential traffic)
Time at airport: 120 minutes
Total time: 270 minutes (4.5 hours)