• When you have an emergency: Cash is accepted everywhere, so have some on hand. Dave Ramsey recommends having at least $1,000 in an emergency fund.
• When you want to limit your spending: Psychologically, we spend less money when we use cash as you can see the money leaving your hand.
• When you want to make healthier purchases: Customers who pay with cash are less likely to make impulsive purchases.
• When you want to have a better relationship with the things you buy: When you pay with cash, you may feel a deeper sense of connection and pride in the item you purchased.
• When you want to make a small purchase at a small store: Every dollar you spend at a small store, they're losing two cents automatically - a cost that could eat up into their already small profits.

When you use credit cards responsibly, they can give you a lot of power. The best circumstances to use a credit card is:

• When you're traveling, you'll get better rates for foreign exchange fees when you're traveling abroad. Travel rewards cards will also offer travel...