No to the items you mention. What is a good solution to protect your Mac is a sleeve within a good computer carrying case. The reason I suggest a sleeve is Macs are so thin, it will take up the extra space in the case and provide additional protection in the event you drop it.
I carry mine everyday, and once out of the sleeve, have nothing to protect the aluminum. It's too beautiful to cover, with reasonable care scratches or dents are not something to worry about.
If Apple wanted you to cover it they would say so. The aluminum is part of the cooling, so covering it impedes airflow over the surface.
All of mine look as good as new.