Now here’s a social media challenge restaurant workers will love. The challenge involves leaving the server a tip that is the same amount as the bill. Yep, a 100 percent gratuity. Diners everywhere from fast food restaurants to swanky hot spots are tipping 100 percent on their meals and using hashtags like #loveyourserver, #payitforward and “#tipthebillchallenge” on their receipts and posting them to social media. (The Daily Meal)