We think the flat card, also known as the correspondence card, is a must have for everyone's desk. In a world of texts and emails, nothing compares to a hand-written note. Our flat cards are perfect for writing a short note for any occasion from a note to your child's teacher to a thank you to someone who has done something a little special for you. But our favorite use for our flat cards is a simple hello. The next time you're about to Like a Facebook post, pick up one of our flat cards and send your friend a hello note instead.