Have you ever seen anyone with multiple credit cards from one or more credit card issuer and thought, “Why? Why do they have so many credit cards?”  You may have even reflected on this and considered, “My one credit card has a high credit limit with decent cashback rewards and that’s enough for me.”       Well, it’s easy to be content with one credit card that has universally good benefits and a decently low annual percentage rate. But there are advantages in having more than a few credit cards as long as you use them in a responsible manner.   One common misconception is that if you have more than a few credit cards, you are irresponsible with your spending. It is true that some people who have multiple credit cards can be very irresponsible with their spending and may eventually find themselves in debt.   However, this is not always the case. In fact, some of these people who carry a decent number of credit cards on their person are actually doing the exact opposite and are being financially…