Reusable shopping bags are great. I love them and I'm constantly picking up another one here and there—if I forget to bring a bag with me, my punishment is the cost of a new one, so they've sort of multiplied. But you know a green product is catching on when the plastics industry is fighting back in what must be an effort to drum up business.

A recently released report highlights health concerns related to reusable bags. The bags tested had been used but appeared to be clean.

Cara Smusiak