I have my macbook for 3 months and it irritated me cuz there were hundreds of scratch marks on the top after just a couple months. So I experience with a clear coating spray that I used for car rims. I tested out by spraying it on the top of the macbook with good distance because I want the rough feel instead of the smooth feel. Now I have a rough feeling macbook with no scratches, but less shiny. For those that are interested in it, you can buy the clear coating spray called Dupli-color from your local car shop. I got it from kragens for $5. Also this spray is meant for metal, so don't put a lot on it or else it might make cracks on the plastic.