Pattern for a car organizer--Clever! I really need to make one of these.
first aid for the car
This website allows you to enter your starting and ending destination and car make/model/year to calculate how much a trip will cost you in gas (calculating for regional gas price differences). Ingenious!
smaller version of this would be awesome in the car
DIY Car Seat Protector, could use this as a starting point for full backseat cover
diy car seat organizer tutorial, great for kids stuff
How to clean a car ceiling