Your entire family loves any excuse to gather together and party it up! When you gained a new sister-in-law your whole unit also got a brand new, yearly-occurring reason to throw yet another relatives shindig! Tell Mom to get baking, tell Uncle to bust out the video camera, and maybe Granny will make her famous potato salad! Let that good-livin' gal know how much she's appreciated in your circle by sending this party candles happy birthday card!