This is a quick drive-by post to recommend Twist biodegradable sponges. I picked up the Twist loofah scrubby on a whim at Whole Foods and used it until it fell apart after about eight months. (I realize this may sound extremely gross to some people . . . but it dried out completely between dish-washings and never seemed to smell or look bad.) When I was done, I put it into my compost bin. I recommend it!
I see Twist makes other biodegradable sponges and rags, too. Check them out!
Twist European Sponge Cloths