Soft drinks, coffees, and teas get marked up significantly to maximize revenues, making them key moneymakers for most restaurants but draining customers' wallets. That's why most cheap guides to dining out recommend that you stick to tap water — but if you're at an establishment that offers free refills, this relatively pricey order turns instantly into a value buy.
Note: In some cases, the availability of free refills may be at the franchise owner’s discretion and may vary by location, especially during the pandemic when dine-in may be closed or self-serve fountain machines may not be available.
Lacey Muszynski contributed to this report.
Related: Restaurants Where Kids Eat Free