Way to go, all you planet-saving shoppers who've made the switch to reusable bags! But consider: "Reusable" doesn't mean "self-cleaning."
Researchers at the University of Arizona and Loma Linda University queried shoppers headed into grocery stores in California and Arizona, asking them if they wash those reusable bags. The researchers were likely met with a lot of blank looks. Most shoppers -- 97%, in fact -- reported that they do not regularly, if ever, wash the bags.