Living in consumer-rich but salary-poor Japan, we all look for a good deal. Around your birthday is a great, little-acknowledged time to save some cash in Japan. Many restaurants, stores, attractions and spas offer birthday discounts and freebies in Japan—some even better thandiscounts for passport holders—that will help you celebrate your special day on the cheap. These include free ice cream scoops, reduced amusement park admission and a half-off haircut. Looking to celebrate with style and enjoy free sweets on a budget? The \places listed below across Japan have you covered. Be sure to regi…