Use Lid Code:
You might win, you might not. If not, try with another email address.
If you DO win:
Print your 1st coupon. DO NOT close that window. Hit the BACK button 3 times. You should see the page where you hit SUBMIT. Hit submit again and it will print another coupon. It should work to get 10 coupons this way and then it cuts you off.
Each IP coupon is printed with a different PIN number, so no worries.