What can you do with those plastic mesh bags from the grocery stores ?

If you knit or crochet, they make great yarn sweaters. Just take your center wind skein of yarn and put it in one of these mesh bags, as you use the yarn it will stay in the plastic mesh bag and not fall apart.

Do you use steel wool pads, maybe you only used it a tiny bit, but it's been wet and it's likely to rust - drop it into one of the mesh bags and hang where it gets air from all sides. It will dry rust free and still be useable.

Store loose garlic cloves in one. If you have a large one corral cookie cutters in it.

i use them to scrub non stick pots and pans wont scratch

they make great pot scrubbers wadded up.