You Are So Good to Me $20.00 Inside Message Blank Inside 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". You Are So Good to Me quantity Add to cart SKU: 356. Categories: Hearts, Pets. Related Products My Heart Bleats $20.00 The Common Rope of Hope $20.00 Bless Your Heart $20.00 Chocolate for My Bud $20.00