Last year, Emma and I decided not to spend too much on Valentines Day gifts. We would get a card, a single gift, and have ourselves a decent meal. The food part was a home made salmon and prawn pie.
I bought Emma some chocolates. She bought me some 'day of the week' socks. Not just normal monday to friday socks, but these had saturday and sunday as well. They were from Marks and Spencers. You do expect a bit more from them.