She does not deserve an ordinary, boring gift. And you of all people know that very well. It has to be something really special. She is one who has been with you through the ups and downs, literally all of your life. Your gift should speak of how much you appreciate and value her. It can be something that has to do with her favorite relaxing activity like a spa set, or probably something she can wear or use. Get those creative juices flowing and find a gift that is not just unique but also communicate your gratitude for being one of the constants in your life.