I'm a wife and mom to three young kids. My kids all think Valentine's Day is great because we do make kind of a big deal about it. They wake up and they have balloons, chocolate and little gifts. I put a heart on their door every day for the first 14 days of February with a little note about something I love about them, and I do this for my husband, too. He and the kids don't do all 14 days for me, but they do a few days. I always buy my husband sexy lingerie for MYSELF as his gift (his favorite thing) and he gets me (and my daughter) roses and usually some inexpensive piece of jewelry.
Sure, it's a Hallmark holiday, but why not indulge and take the opportunity to "prove" your love, as a pp said. Or at least just SHOW it. I figure, in addition to making each other smile, we're showing our children that it's fun to be a married grown up, too.
To all you men out there...I say...it may be true that your wife doesn't care about Valentine's Day. It may be true that she won't be upset if you do nothing. But...I feel confident in guaranteeing you...that she will NOT be offended if you come home with a card with a handwritten note telling her something you love and/or appreciate about her, a bouquet of flowers, a little gift...a beautiful sweater, a little pair of earrings, whatever you think she would love. Even if you've never done anything like that before. Try it. I promise you, she's gonna smile. She's going to feel loved, special and cared for. Even if it is just a Hallmark holiday.
