Products like chips should be forced to use biodegradable bags (whether wax paper, bioplastics, ...). Similarly, disposable drinking straws, cutlery, the little wrappers they come in, etc. should be biodegradable.

At most it might cost a few cents more per unit, but when millions of them get dumped in a river somewhere, they won’t stay there permanently.

Trying to eliminate packaging altogether is hopeless at this point, I’d wager.