As avid money savers, we’ve tried them all (well, most of them, anyways) but have only continued using a select few—the ones that result in the most free money and take zero time to use.
Credit card companies, specifically rewards credit cards, pay you to use their card, and if you use them wisely—i.e., not go into debt—you can make great money with them.
There’s nothing more convenient than brewing coffee by the cup. There’s only one problem: those K-cups aren’t exactly cheap when compared to the cost of ground coffee.