Sometimes due to force of habit, the stall owners/ cashiers at supermarket checkout were too quick to pack our purchases into the plastic bags even you had repeated yourself multiple times before. Just be patient, refuse them nicely and pack your groceries into your own produce bags.
2. Reuse your extra lunch boxes to carry other fragile produce to prevent bruising and other wet purchases. Get those reusable lunch boxes that are freezer safe incase there is a need to put your produce in the freezer.