Sometimes You Have to Wing It $20.00 Inside Message Inside: May You Soar Packages of Heartstrings® cards are shrink-wrapped and sold in sets of 10 cards with envelopes. The actual card size is 4 1/4" x 5 1/2". Sometimes You Have to Wing It quantity Add to cart SKU: 754. Categories: Friendship & Support, Sympathy - Healing. Related Products Close Knit Friends $20.00 Friendship is Continuous $20.00 Share an Umbrella $20.00 High Hopes $20.00