kitkat I was the same way with my fiance. Finally after our THIRD Valentines together he told me that he'd rather have somthing he can use than somthing sentimental. I've been trying to get creative to combine the two though. For Valentines last year I bought a battery-powered alarm clock and I put a picture of me on the face of it. I decorated the numbers with cute stickers and stuff. He really liked it cause it was somthing he uses every day, and it has my picture on it.
Now if I could only dream up more cool stuff like that,lol.
For other people I usually try to get practical gifts.