If you haven't already requested your coupon for a free 20 oz. Dr. Pepper, you can do so here through 6 p.m. EST time today (Monday, November 24, 2008). You can request up to one coupon per person in your household.
If you have trouble getting the site to load, you can call 1-800-696-5891 and request your coupon(s) by phone.
Thanks, Freebies 4 Mom!