You may recognize these ideas from last year, but they are great ways to celebrate Valentine's day inexpensively.
My 14 year old daughter loves pizza and this is our favorite pizza recipe shaped into a heart. I can't publish the recipe online because of copyrights, but it would be worth your time to check out one of Todd Wilbur's Restaurant clone books that has the Pizza Hut clone recipe and copy it down. You might even be able to find it in a bookstore if you can't find it at your library. You will not be disappointed!