Through all my different careers, I have learned it takes an oil to break down an oil. I have had this problem where no matter how clean my hands are, and using isoprophil alchohol or iKlear, it still doesnt remove the oil residue off the keyboard or alluminum unibody. So what i did was dampen a cloth with "gook off", which is an oil or sticky residue remover. This actually made it greasier, but after rubbing my Pro with Gook off and then cleaning off the Gook off with alcohol, the residue was gone! I do this every so often when the keyboard gets shiny or I see oil residue below the keyboard where my palms rest. Rub Gook off using hard pressure, then remove the gook off with alcohol or iKlear, or whatever watered down cleaner you prefer. This is the only method that has worked for me and my school that actually works, leaving my Pro and the student laptops looking brand new. I do not recomend this for the screen because I have not tried it yet and have not needed to try it on the screen. Rub hard!