Have you ever lost a phone charger? Next time you do, don't buy a new one. Phone chargers are the number one left behind item at Hotels. They usually have a big bin filled with every phone charger imaginable! Go to your nearest Hotel and say you lost one. Chances are you have, just at a different hotel!
Most stores stack their products from the back as they want to get rid of items that will expire first. Therefore always take from the back to ensure the freshest product. Works with basically everything, drinks and ice cream/yogurt are the ones you should look out for.