22 Creative Homemade Valentine Card Ideas | You are both winners when it comes to the game of love, but this playful Valentine's Day card reminds your partner that they have your heart. To create this DIY Valentine, print the words “you won my heart” on white cardstock and then fold it in half. Then, create a game of tic-tac-toe with a marker and some heart stickers. #realsimple #valentinesdayideas #giftsforher #giftsforhim #valentinesdaydecor #valentinesdiy