Great article from Momentum Magazine on the basics for shopping by bike. Adding this to the page of How-To Resources.
When it comes to shopping by bicycle, you’ll have greater success with the right accessories.
My partner and I picked up the habit of shopping by bike shortly after we first started riding together. On the way home from a ride, we’d stop in at a butcher shop or pick up some take-out for dinner. At first, we’d hang bags from our handlebars, but we knew this was putting our purchases at risk as they swayed and bounced off our front wheels. We soon had the urge to carry more with us – without having to take transit or resort to borrowing a car.