By Pantelis Solomou
It’s Saturday morning, and you’re doing your weekly grocery shop. You’re at the checkout and realise you don’t have enough bags to fit your groceries. You don’t want to pay the 10-cent charge, though, and you end up filling the bag you do have with everything else loose in the cart. As you awkwardly manoeuvre your overflowing cart to your car, dropping items along the way, you
