GitHub User: andyman
Thanks Nik! The GoDaddy coupon code for the $12.99 1-year SSL certs from retailmenot.com still worked (2012-07-13). But during checkout, if you extend it from a 1-year cert to more years, the discount applies to each year! I got a 5-year cert for only $64.95! For once, I'm glad GoDaddy is so crappy.
(If you start with the 5-year cert, then it only applies the discount to the first year though).