If you looking for godaddy coupon code for 2010, maybe you can use this coupon.
cjc749fat – $7.49 .COMs (exp 2/28/10)
cjcfat30 – $5 Off w/ $30 Purchase (exp 2/28/10)
cjcfat50 – $10 Off w/ $50 Purchase (exp 2/28/10)
cjcfat75 – 15% Off w/ $75 Purchase (exp 2/28/10)
cjcfat10 – 10% off any purchase (exp 2/28/10)
cjcfat20h – 20% off Shared Hosting (exp 1/31/10)
Edit by Moderator- The coupons above have been extended through February, the expiration dates have been edited to reflect that
OYH7 – $2.50 off / $7.49 any .COM (renewals too… just used it)
BTPS101 – 20% any order of $50 or more
BTPS111 – 10% off anything
BTPS255 – 25% off $100 or more
OYH5 – 10% off whatever
OYH6 – $5 off a $30 purchase
OYH20H – 20% off hosting
chill5 – 10% off
chill6 – $5 off $30
chill7 – $7.49 .coms
hash5 – 10% off
hash6 – $5 off $30
hash7 – $7.49 .com registration
gdd1101c – 10% off any order of $40 or more