Single Ply Burley Knit Terry wipes...
I have never seen these sold anywhere but I have 17 metres of burley in my fabric stash and my Walmart washcloths were biting the bullet SO I decided to try serging up some 8x8 squares of burley and trying them out.
They are WONDERFUL!! Someone should really sell them LOL! They also make THE BEST washcloths for baths and such. They are nice and thick (the nature of burley LOL) have that nubby texture on one side for picking up poop and on the other side they are smooth textured for touch ups and such.
You may want to see if someone will make you some. They seriously kick butt!