Just discovered you're supposed to use soap when mopping your floors

I was emotionally neglected as a child and never learned basic life skills or chores. It was only a couple of months ago now that I even found out you're supposed to mop your floor at all, and just sweeping isn't effective enough. Now I've learned that not only are you supposed to mop your floor, you're also supposed to put soap in the water you mop with. Because the soap is what makes it clean. Duh.