Make your own Valentine’s Gift
This should not be hard at all. You could bake a cake, make quick and easy snacks and savouries, or even create a simple scrapbook of the memories you shared with your partner in the past. You could also write a beautiful poem professing your love to your partner, or simply list the things you love about him or her on a piece of paper and place it somewhere you know they will find when they wake up first thing in the morning. This is not expensive, but be assured that your partner will remember it almost every day.