Today we went shopping for food, and after I made the purchases, I was wondering where to park the shopping cart. Suddenly, I knew where to put it, namely back to where I got it from, because that was how I could redeem back my 2 sFr. coin ($2). No wonder, all shopping carts were orderly parked. Also, when shopping, always carry a 2 sFr. coin, in case you need a cart.