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The average household has between three and four credit cards; having too many cards is not necessarily a bad thing. The thing to be careful of is opening too many credit cards within too fast a timeframe. Another thing to consider is your credit score. If your score is good, you probably don't need to worry as much about being turned down for a card. But you should still be thoughtful when applying for a new card, such as a Sphere credit card. Make sure it’s a card you will get a lot of use out of, and not just a store credit card that you’ll only use once. Also, don’t close any of your old credit card accounts. Leave them open so you’ll have a longer credit history – it’s one of the best things you can to do for your credit score.