help

Hi, I just got possession of my house and my basement has what I believe is VCT. It is very dull looking, has scuff marks in some places and has some stains due to foam padding tiles left on the floor for many years. Can someone please guide me on what is the best cleaner I can buy to clean it...

This is my first time doing any flooring, we're trying to pull out the old carpet and install floating laminate ourselves. We've pulled up the carpet and I see some spots where the plywood isn't quite lined up. Does it need to just be nailed down better where it's lifting on these edges, or do I...