Here are some Godaddy new customer coupon codes for September 2010. These coupon codes also work for existing customers. Here is a list of Godaddy coupon codes I have found that works.

WALLET125 = 25% off orders over $100 ( could be used to combine domain registration & hosting packages )

WALLET20H1 = 20% off any hosting package ( minimum of 1 year )

WALLET412 = 35% off .com registration ( pay $7.48 vs $11.44 )

WALLET411 = 20% off on orders $65 or more ( could be used to combine domain registration & hosting packages )

WALLET410 = 10% off any order not already discounted ( this code could also be used to transfer from another service )