Hi! I need help in deciding what is the best keyboard cover brand for my white macbook 13". Any advice is appreciated! 
Do you think it blocks air from escaping, causing the mac to overheat?? that's what some reviews are saying...
Hmmm...so I must weigh having a dirty keyboard in the future with having my mac overheat? I just feel like I've spent so much money on this and I want it to last, I don't want particles getting stuck under the keys or for the keys to get shiny. Decisions...
Anyway, thanks for your help!