Disclaimer: I've searched the site for the answer to this question already and haven't found anything satisfactory, so forgive me if this has already been asked. We've had our MBA's for several months now, and I clean them weekly. However, over the months my wife's keyboard has become quite oily. I've tried using the solution that I use to clean the screens on it, but I've had no luck. Does anyone else have this same issue, and what have you done to remedy it? Thanks in advance for any help.