First, I can't see V-day without thinking of The Vagina Monologues. That is in no way a suggestion to give your love your vagina or anything, even though I'm sure that your partner would appreciate it.
Simon and I don't really celebrate Valentine's day too much. We generally just get together as usual and have some sort of food at home. His birthday is on the 30th of January, and so by February I have no money.
Instead we buy eachother little gifts and tell eachother how much we care throughout the year.