Uniqlo:C Drawstring Bag

I bought this bag for travel but have ended up using it all the time in my daily life. It has a stylish little pouch shape (thanks Clare Waight Keller!) which can expand into a full-size tote - it's versatile day to night, and magnets/snaps along the top keep it securely closed for walking around. The short straps fit over your shoulder as all short straps should, it folds down to nothing, and weighs nothing - highly stowable in a carry-on suitcase or personal item!