So, instead of buying disposable mop heads, why dont you try sewing reusable pads instead?
I stumbled upon this simple tutorial and immediately knew I had to try it.
Tape the 2 paper patterns together, then cut them out.

Image Credit: Hello Sewing via YouTube
Put them on top of each other with their right sides facing together and their edges matching.
Pin or clip them around in place leaving a 2 to 3 inches gap for turning later.
Topstitch all around the pad including the unstitched gap so you can close it shut.

Sew on the velcro straps on each flap.
*Thanks toHello Sewingvia YouTube for all images used here.
How To Sew Reusable Swiffer Pads
