After much searching and some disappointment, I found these 2010 Go Daddy Discount codes that work now!

Wallet30 takes 30% off all .com renewals and all new .com registrations. This is the most popular Godaddy Coupon for Renewals!!!
Wallet11 takes 10% off any order. This code works well on all non .com orders including HOSTING, webmail, registration and renewals!
Wallet22 takes 20% off any order over $50


Enjoy!