One year I decorated the apartment that my husband and I were living in while he was at work. I blew up balloons, hang up streamers and even set up an obstacle course using cellophane tunnels, chairs, tables and cushions. I had instructions to follow the lollies trail I had made. The trail led him to every mirror we had on each mirror I used lipstick to write a love message, the end of the trail led him to his main valentine present a little teddy that was holding a heart that said i love you and his favourite chocolates. He got such a surprise when he came home, he loved it! We took pics of it and still talk about it years later.
I think for Valentine's, more than a gift, it's a thoughtful thing you do for your partner that would count. Like SupahAnnie did, that is something really romantic. It's easy to buy a gift, wrap it up and leave it in a gift bag, but actually "doing" something goes a long way.
I cooked home-made Chinese food one Valentine's day which was white rice and sweet & sour (red in colour). We lit up candles and had a romantic dinner.