Bill Maher's Las Vegas residency at the Palms has been a success, but on the off chance you still haven't been able to see his show, now's your chance.

For one day only—Monday, January 20, Bill's birthday—the Palms is offering a $20 discount on tickets for Maher's upcoming 2014 shows (March 22-23 and October 10-11). All you have to do is go to the Palms website between 10 a.m. and 10 p.m., order your tickets, and use the password "birthday" at checkout to get the special discount.