I use it for everything
I use my lunch customisable bag for literally everything! I never leave home without it! I bring it to the grocery store, I pack my lunch in it, I take it on car rides with a book, Kindle, sweater, and camera stuffed inside. It fits perfectly in my bicycle basket, and I also throw in toys and treats for my dog. I bring it to Disneyland all the time with me (I customised it with 'The Haunted Mansion') and it' the perfect carryall for my water, snacks, a sweater and any goodies I purchase.