Most people will go out for Valentine's Day. This year you have some options, as most restaurants are prepared to give you and yours the special St. Valentine's Day experience today (February 11th), Valentine's Day itself or on the 18th of February. With that, the pressure of ensuring that you made your dining reservations at her favorite restaurant way in advance, but forgot it anyways, should be at ease.
But now what? Do I arrange for special flowers for the dinner table? Do I pre-order a nice bottle of Champagne? I would. It is Valentine's Day for crying out loud. Might as well go all out and have lasting, memorable evening with your significant other. Or stay home and cook a special dinner and pull a nice wine out of your collection (or if collection is nonexistent), buy a nice couple bottles of wine.
In regards to the Champagne selection, see my New Year's Eve blog for recommendations.
Want to know more about Saint Valentine? Click the hyperlink.