How do I clean my Mac Book Air?

Good Morning, Apple!

This is, Constance Stephens, and I owe a Mac Book Air!

I purchased my Mac Book Air, in December 2011, and I just cleaned my Mac Book Air, with a cleaning product, my Momma had here at the house!

I need to know what cleaning product(s) I need to clean my Mac Book Air, in the future, because I love my Mac Book Air!

In addition, when I was cleaning my Mac Book Air, this morning, some of the outer covering of the F 10 key was removed, and when my Mac Book Air in on, I can see the white light, shining through!

How can I replace the outer covering over the F 10 key, on my Mac Book Air?

Thanks for responding to my Mac Book Air questions?

Professionally Submitted,

Constance Taylor-Stephens, RHIA