My new apartment has hardwood floors and tile in certain areas. I cleaned the floors with a swiffer wetjet and sweeper but they're still dirty! They dont look dirty, but when I walk barefoot, my feet turn black. At my friend's house, he has the same floors but I walk around his place and never get black feet. How does one get their floors THAT clean? Is it just moping it over and over until all the dirt is gone?
Should I use a different product?

Have you claimed your Genesis site?