Isolating your financial needs on different credit-card accounts will help you get the best possible terms on every transaction that you make. For example, you could get the best cash-back credit card for everyday expenses, the best travel rewards card for airfare and hotel reservations, and the best balance-transfer card for reducing the cost of your existing debt.
With poor credit, you may not be able to get approved for new credit products like credit cards. Although you may still be able to take out an auto loan or a mortgage, you’ll pay a much higher interest rate because of your low credit score. Compared to a borrower with good credit, someone with poor credit can pay $50,000 more in interest on a mortgage. Over an entire lifetime, you could end up paying over $200,000 more in unnecessary interest just because of bad credit.