The Love, Love, Love Card ($4.50) from Two Trick Pony is a great example of a simple, stylish Valentine's Day card. I'd save this one for my graphic designer friends, or anyone that's interested in typography. This card and envelope are made from 100-percent postconsumer waste recycled paper, and come packaged in a biodegradable, compostable PLA sleeve. Stylish and eco. What better way to say Happy Valentine's?