hi, my husband and i sanded our floors and when it was time to varnish my husband said we'll varnish them in 2 days and so it was the weekend and naturally when you have kids the floor gets dirty and now that we have to varnish the floors tom i’m worried about the stains staying there and idk what to do, should i wipe the floors before? what should i do? plz help me if u have any idea on what to do.