My daughter gave me two of the coolest shopping bags you could ever imagine! Made of nylon, they fold into a small roll even though they measure 16" and 18" plus the handles.
held in place by two straps that simply snap together so I can then drop it in my purse (which is a whopping 5"x 7").. They are so rugged and generous in size that I can get twice as many groceries in one as I can in a typical recycle bag!
Kudos to my kid!!!