If you're reading this on February 13th, a virtual gift is just about all you've got time for. Google Gadgets has this great, red tulip that grows on your dektop when you "water" it and unlike real flowers, lasts forever, or at least until you break up.

It's only a 161KB file; just make sure he/she has Google Desktop 4 or above. Or, if you're on Facebook, you can send all sorts of virtual flowers to your sweetie.