When I began reorienting my shopping toward zero-waste, I decided to drive a little further to reach a store that sold some ingredients in bulk. Now even the stores closer to home sell at least some ingredients in bulk. I like to encourage the offering of these choices, so I make sure to utilize these options from time to time too. The gluten eaters in our tribe especially like to choose a bagel or pastry or muffin + put it into a scarf or cloth bag from home as a sort of alternative fast food lunch.
Please do let me know if you have any questions! I'd love to give them a shot! :)