Clean tiles streak-free and without water stains
I found a solution by accident as I get in the bathroom from the tiles the water stains and they are still streak-free and shiny.
I take on 1 liter of water, 1 liter of cornflour wipe it simply with a microfiber cloth and the cornflour water :) on the tiles, then just dry with a microfiber cloth over and ready.
No more polishing, no more time-consuming roughing and the tiles look like new.