A lot of the time people don't remember birthdays unless they are reminded. Sometimes it takes some work getting people to acknowledge your birthday. If you want people to acknowledge your birthday I suggest you start greeting other people on their birthday during the year so people take more interest in your birthday too. It doesn't mean everybody will remember but at least they will take interest which is a good start.
I think buying things with coupons is a good idea if it saves money. I like getting discount vouchers for the places I spend money at often.