Groupon offers $10 Groupon Credit for Free when you enter code f3e12-2n963f.

Note: Some are reporting for new accts only, others having luck with existing accts

1. Click here to login your Groupon account or register
2. Go to My Stuff
3. Click on My Account
4. Click on Redeem a Gift Card
5. Enter code f3e12-2n963f

Here is yet another $10 with code f6412-2n955f
Here is yet another $10 with code f9y12-5n213f
Here is yet another $10 with code fa612-fn979f
$15 code rzx12-qn14er