It might be safe to say that we are slowly approaching a time when people no longer use cash. Not to say that cash will ever disappear, that is not going to happen, but with the ability to pay with debit cards, credit cards, smartphones, and even smart watches, people simply don't carry cash with them anymore. The slow disappearance of cash from our lives shouldn't and probably wouldn't affect our everyday life that much, but it can cause some inconveniences to some people, or more specifically…