Every household has the ongoing need for washing up, even if you have a dishwasher there is a need for sponges and dishcloths for keeping things clean. The ones in the shop are made to be replaced, often made of plastics which degrade over time and end up leaving residue on your dishes and going down the drain. I found I was forever replacing them, never feeling they were clean even when I washed them. I decided to find what all the fuss was about from others with cotton crochet dishcloths, and have to say the rumours are true: they're awesome. I recommend 100% cotton for things like this as it is absorbent, can be cleaned in boiling water and will not fluff. Acrylic is not as absorbent and will melt or stretch under heat. As it breaks down it will also put more plastics in the water, which we are learning is causing all kinds of misfortunes. When it's time to wash them, simply throw them in the machine with your clothes on the next cycle. If they are greasy or stained, try so...