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The Benefits/Disadvantages of using a credit card
Credit cards have three important advantages. None of them are for day-to-day borrowing of money. Safety - Credit cards have better fraud protection than checks or cash, and better than most debit/check cards. If you buy something with a credit card, you also get the issuer's (think Visa) assurances that your will get the product you paid for, or your money back. At almost any time, if a product you buy is not what you expect, you can work with the issuer, even if the store says "screw you". Security - Credit cards are almost universally accepted as a "security" against damages to the vendor. Hotels, car rentals, boat rentals etc. will accept a credit card as a means of securing their interests. Without that, you may have to make huge deposits, or not be able to rent at all. For example, in my area (touristy) you can not rent a car on debit or cash. You must use a credit card. Around here most hotel rooms require a credit card as well. This is different from area to area, but credit cards are nearly universally accepted. Emergencies - If you're using your credit card properly, then you have some extra padding when stuff goes wrong. For example, it may be cheaper to place a bill on a credit card for a couple months while you recover from a car accident, than to deplete your bank account and have to pay fees. Bonus - Some cards have perks, like miles, points, or cash back. Some can be very beneficial. You need to be careful about the rules with these bonuses. For example, some cards only give you points if you carry a balance. Some only give miles if you shop at certain stores. But if you have a good one, these can be pretty fantastic. A 3% cash back on purchases can make a large difference over time.