Question: free things to do on your birthday in philadelphia?
Answer: Applebee's - Free birthday dessert with the purchase of an entree. Arby's - Free milkshake with any purchase, as well as a free roast beef sandwich after signing up. ... 
Cinnabon - Free MochaLatte Chill. ... 
Jamba Juice - Free juice or smoothie, plus $3 off your first purchase.