In this absurd modern world, it's okay to say "enough" sometimes. To insufferable trends. To stressful stuff. To B.S. To everything. In fact, it's more than okay: it's your birthright as a human being. Liberate yourself - and others - by announcing you're dunzo. Just say no to anything - except cool office supplies. Issue Knock Knock notes to others - or yourself. 4 x 5.25 inches, 50 sheets. Knock Knock is an independent maker of clever gifts, books, and whatever ELSE they can think up. Knock Knock mission is to bring humor, creativity, and smarts to everyday life. Say something more with #Knock Knock stuff.