Fast food used to be simple: pick your burger, fries, or burrito and move on. But today’s menus are designed to tempt you with endless add-ons and upgrades — extra sauces, premium toppings, stuffed ...

We have one simple hack to upgrade your fast-food french fries without adding anything extra. Annika Rudolph, a former McDonald's employee, shared with us, "From my time working at McDonald's: If you ...