Good micro-fiber cloths need not be expensive - this Amazon has now demonstrated with the house brand. A towel will cost just 42 cents here. Today I brought the winter dirt from windows and it worked wonderfully ... the dirt remained in cloth stick and not smeared - as with normal cloth for pennies - back and forth, then he let himself wonderfully rinse in water.
I also think it's great that there are three color here, so you can allocate a color to each household sector (kitchen, sanitary, etc.).