GoDaddy.com has a 30% off coupon code - CHH3. Code works on new domains and renewals.

There's also a thread with a godaddy renewal code for $7.49. Use whatever one saves you the most. I'm not sure if they will stack. Thread with code here:
http://forums.slickdeals.net/showthread.php?sduid=268532&t=1110979

GoDaddy website:
http://www.godaddy.com

Renewed 2 Com Domains. Thanks & Repped.

After a night's sleep I'm going to check my domains and see if they are due soon. Thanks OP

* Edit: Used this one just now, $7.69 total. thx again

$7.69 renewal -- thanks and repped!

Thanks. This is still working. Just got a new domain for $7.69. Seems like prices have gone up recently but oh well.