car every day. Her car is pretty cluttered most days, but I haven't kept up with how often she cleans it out. Then we took my car to California this past week and getting out of that car and looking at what my 4 year old and 1 year old left for me in the back, I finally understood. Since then we've talked about it and she cleans out the car about once a week or every other week. I'm amazed at how filthy two little kids can be with their food. And you can't really take a 4 year old and 1 year old on long trips without feeding them. Next time I'm building in "eat-in" time to our trips to avoid the mess as much as possible.