Car ride from Jacksonville to Orlando :) Big collection of road trip activities to keep kids busy in the car. plus super simple do-it-yourself lap boards! All this stuff kept my kids busy and content for hours in the van.
The Fun Cheap or Free Queen: How to survive a road trip with two babies by yourself.roadtrip tricks, tips, and creative ideas! (plus link within the site to more tips from a trip w/ slightly older kids)
DIY Travel Busy Board for Kids - a DIY Lego board too