I just renewed my brother’s domain name in Godaddy.com. Before checking out, I realized that there’s coupon code for it so I Googled around for the code and I found it. Here I am to share with you the code too. 

• CHH3 takes 30% off all new .com registrations and all .com renewals. This is the most popular Godaddy Coupon!
• CHH2 takes $5 off any order over $30.
• CHH1 takes 10% off any order. This code works well on all orders including hosting, webmail, registration and renewals!

I used CHH3 for my domain renewal. =) I am not sure when this code is going to expired but it works for me for now.