I just bought my brand new retina Macbook Pro 15", first Macbook in years and I absolutely love it. I was wondering if people recommend using a palm guard and keyboard cover for the laptop or could it possibly affect the retina display overtime? My main concern is that I'm a writer so I'm constantly using my keyboard and I just want to make sure that over time the keys won't wear down. Also, if you recommend any awesome accessories for the rMBP I'm all ears! Thanks!