Do you have a solution for my laminate flooring?

We put in a wood-laminate floor four years ago. I asked the installer about caring for it and he said, “It’s made from the same thing your counter tops are made out of, so just take care of it like you would counter tops.” Well, to me, that just means soap and water. However, if I mop, when it dries it’s all dull and streaky with dull streaks. It looks like crap.

When I was at my daughter’s I commented on her wood laminate floors, which I know went in two years ago. They were shiny and spotless. I asked her what she used, she said nothing. She said she’s never, ever mopped…..wiped up spills, but never mopped.

So…how do I get all the old soap residue off and after that…do I just leave them be except for sweeping?