I'd never heard of a scrim and googled. The things you learn eh. I have two eco cloths, one must be similar, but cheaper, than a scrim, the other is like the 2nd one Jo8 showed an image of. I've done more window cleaning recently than I like. Maintenance work on the house = plaster dust, it gets everywhere. In fact, I've done more cleaning generally than ever before.
Why do wash cycles take so long? The new washer takes over 2 hours to do an ordinary cycle. There is a magic button you can reduce the time to one hour. I was told it's to do with water/electricity economy - I don't understand how that can be.