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The author of this article, Holly Johnson, has 26 credit cards, but she pays zero dollars in interest every month.
This includes a combination of travel credit cards, business credit cards, cash-back credit cards, and flexible credit cards, basically all the various cards that give me free stuff when I spend money.
It's easy to assume having lots of credit cards is the best way to rack up soul-crushing credit-card debt.
Use a written monthly budgetThe best way to avoid debt with or without credit cards is using a written budget every month.