I have considered building a good travel kit for the car to make those long, summer car trips more enjoyable. I decided to make it battery powered so that it can be used on the beach, in your hotel, or in while fishing on a boat. I started with an old computer fan, and then went crazy, adding a whiteboard, a light, a radio, a cup-holder, and a pad of paper. The fan helps keep you cooler than the car air conditioning can, and will let you stay cool on the beach. The whiteboard is great for playing games in the car. And for anything that the whiteboard can't do that paper can, I added a pad of post-it notes. The radio I used has a built in speaker and a headphone jack, so you don't have to deal with annoying siblings or your parents' awful music. The light allows you to read in the car at night, pretty sweet huh? You know what the cup-holder is for, so don't make me explain that. If you have any questions, post it in comment form. I guess that's it, thanks for reading!