How to double-, triple- or even quadruple-dip on dining rewards

Rewards cards that offer bonus points or miles on dining purchases are a good way to earn on what is a frequent expense for many consumers. But if using one of the best dining cards is the only way you're maximizing your restaurant purchases, you're likely missing out on some easy points and miles.To get the most from each purchase moving forward, here's what you should know so you can double-, triple- or even quadruple-dip on dining rewards and savings.Start with a credit card that rewards diningBefore worrying about stacking rewards, you should ensure you're earning rewards on your dining purchases. Here's a look at some of the top cards for dining purchases:American Express® Gold Card: Earn 4 points per dollar spent on purchases at restaurants worldwide (on up to $50,000 in purchases per calendar year, then 1 point per dollar spent for the rest of the year).Citi Strata Elite℠ Card (see rates and fees): Earn 6 points per dollar spent at restaurants, including restaurant delivery services, on CitiNights purchases every Friday and Saturday from 6 p.m. to 6 a.m. Eastern time; earn 3 points per dollar spent on restaurant purchases any other time.Chase Sapphire Reserve® (see rates and...