Live near a Whataburger restaurant? To celebrate the 100th birthday of the late founder, Whataburgers will cost just $1.00 today! Go to the Whataburger Facebook page and click on “get offer.” The coupon will be sent via email; print or show it to staff using a mobile device. The offer is valid today, 10/8 only, between the hours of 5-8:00 p.m.. Find a location near you at whataburger.com.