Discover card will pay you cash back for any amount you put on your card each month. They place your cashback in an account that you can allow to grow, or cash out each month in twenty dollar increments. You may also use your cash back bonus to purchase gift cards, or even donate to charity.They also give you the opportunity to sign up for five percent  additional cash back opportunities each quarter. The cash back opportunities for this quarter are gas, hotels, and theme parks. The fourth quarter will be grocery stores, restaurants, and movies. As you can see, the cash back is on things that...