my first time swapping an internal computer component btw. and i'm planning to install my new momentus xt in it. i have read online on how to effectively ground myself, using anti static wrist bands, etc. but they all point to building a desktop computer. is there a peice of metal where the wrist band wires can attach to in the macbook pro? would doing the procedure on cardboard or floor tiles work? would i still need to ground myself still?