What should I get my wife for her birthday?

get her a car

Try to be with her on Christmas day! This would be a great gift to her!

What i wld do is show her that i am very busy and wont be able to celebrate her b'day or buy any gift. And would arrange a surprise party, a perfect Candle Light Dinner. Take a bunch of roses or a Bouquet of her favourite flowers, give her TIME (which she would love the most), her favourite cake, and the gift she would love.... I would buy something according to her nature, say if she loves Jwellery... then a beautiful ring or a neckless...... So just chk out wht she likes the most... and decide accordingly... Best of Luck

arrnage for a dinner date for just both of u ...