How do you protect unfinished hard wood floors?

Restoring the finish on your Hardwood Floor can be done by Removing the dull, scuffed varnish and then cover it with new finish.

ANS 2 - That's not anywhere near as easy as it sounds. I've done 2-3 and found the only realistic way to do it is rent a large heavy floor sander and sand everything smooth. Then apply sealer and special polish or new varnish. 2-3 days work, major dust and you need to remove all furniture.