I don’t know about you, but I eat lunch on the road all the time. Whether you are making your own food or buying it from a fast food restaurant, you need a place to store it properly to avoid any mess. This car table idea by Urthwhyte is quite interesting. The table sits in your cup holder and provides you with a place to store your food and other things.
All the instructions are provided on Instructables.com. You can always buy things like this, but as you can see, making them is not that hard.