
Sure there are lots of these on the market but my favorite comes from RuMe. They are super small and light when folded and large enough for groceries or a day's worth of shopping when unfolded. Best of all, they are super sturdy (think groceries for the week) and they fit perfectly over your shoulder keeping your hands free. I also discovered that they can also double as a beach bag - here we are in Anguilla last month:
