Swiffer cozies reconsidered

Now, why would I waste brain time on swiffer cozies? It's just that when I make presents for friends and family I have a horror of their being kindly accepted and then put away in some closet or drawer, to be taken out only to be given to charity. So, I decided to see if there were other mop covers out there. And, remembering that our friends, the intended recipients of the mop covers, are cleaning enthusiasts, I realized I ought not to use colored cotton if they were going to dip my little honies in chemicals like bleach. Or worse, in anything that would leave streaks on their walls. They actually wash their walls seasonally. What virtue.