OK, guys...
You forgot to order the flowers, you can't think of what to write inside a card and you have a slight hunch that Valentine's dinner at Ryan's isn't really going to cut it.
Quick, say something nice!
That's the exact name of this site, which lets its visitors vote on a rotating set of compliments, things ranging from "you make everything more fun" to "I can't believe I was lucky enough to find you."
Awww. Say it with enough affection and your girlfriend won't even notice she's getting something from a mass-produced list of compliments.
Note: If you don't have a significant other, it's perfectly OK to pretend somebody really hot is reading the site's sweet nothings to you. Kind of hot, in fact.