High traffic room, carpet looks bloody awful. Concrete floor underneath, but 'unfinished.' It's roughly done, but I don't mind things looking a bit rustic 
What do we do with this floor? I'd like to leave it as concrete, with a big Persian rug over most of it. What's the best way to do that? Do we treat it? Paint it? Sand it down? How long does it all take?
We're hard workers and have a ton of tools and are good at learning to do stuff and getting on with it, so we're definitely have a bash ourselves, rather than getting someone in.
Any tips?