I use a drawstring bag to hold my used teatowels and kitchen cloths until I get round to washing them at the end of the week. Having repaired my old one a number of times, I have to give up on it now and consign it to the bin.
I have a stash of fabric kicking about in my spare room, some of which is too unattractive to use for any decorative purpose. I've no idea where this piece came from – it's pretty horrible so this is exactly the type of practical project I need to use it up!
So then, having already determined that this one is functional only (be prepared to embrace the ugly!) it's a simple rectangle sewn across the bottom and up both sides and a double fold hem at the top to thread your string through. Easy squeezy!
I use these big style pins as markers on the top hem to remind me not to sew all the way round!
There. Ugly but functional.