John Costello CPA
Web Developer, Project Manager, and Social Media Manager in the United States
John Costello CPA Best service provider. Write down the card numbers, expiration dates, and customer service numbers associated with your cards. Put this list in a safe place, like a deposit box at your bank, where it is away from your cards. This list is going to help you if you ever get robbed and they get stolen or if you lose them somewhere along the way.
Keep one low-limit card in your wallet for emergency expenses only. All other cards should be kept at home, to avoid impulse buys that you can't really afford. If you need a card for a large purchase, you will have to knowingly get it from your home and take it with you. This will give you extra time to think about what you are buying.