We are new owners of a 1920s craftsman home with lots of original woodwork, including floors under w/w carpet. I've been pulling up the corners of the carpet to see what shape the floors are in. We have minimal $/time to spend on the floors, but with small messy children I am desperate to get the carpet up in at least the dining room as a trial. In this room I have been able to see a large number of screw heads put through the floorboards along the joists, presumable to fix loose/squeaky boards. What's my quickest cheapest way to address this? Some screw heads are sticking out enough that I would not want to walk on them without shoes. Do I try driving them in further, and maybe putty over the heads? Are there any potential problems with trying to remove and replace the screws with the kind with break-away heads? Should I be worried by the number of screws I see (like, every few inches along each joist in the corner I've looked at)? I would love someday to have all the carpet up, but I want to know what I might be getting myself into first.