When a couple lives together, they need to understand each other's feelings, so that they can understand each other's thoughts and create some small surprises for each other. Only in this way can life feel interesting and romantic. For your wife's birthday, of course you have to give her a good gift. Here are some suggestions:
First, since you have been married for three years and your finances are stable, you can give her a new piece of jewelry. A new necklace or bracelet is a very good gift.
Second, give her her favorite cosmetics, new perfume is also good. Of course, if possible, you can go around with her and buy her a bag she likes. It is best to have you accompany her.
Third, give her a creative gift, give her a crystal music box. A nice music box and beautiful crystals will make her like it very much. You can also give her a pair of color-changing couple cups, print your photos on them, and you will see each other every time you drink water. It is a very good home gift.