Crappy birthday eCards and birthday greetings suck, but hilarious JibJab Sendables birthday greetings SOCK! Join Sockrates, the sock puppet philosopher, as he muses about birthdays and what happens to socks as they get older. What is the meaning of life? Certainly not crappy birthday eCards or birthday greeting cards! Search deep within JibJab Sendables birthday greetings for the true answer. It's surprsingly hilarious!