Expedia is offering a $25 off coupon by providing them with your cell phone number. They will text you a discount code which can be used for booking a hotel room with the Expedia app through March 31, 2015. You can get three $25 off coupons, though you must wait 24 hours per coupon request.
The link to the coupon is http://www.expedia.com/privatecoupon
Coupon must be redeemed on Expedia.com by 11:59 PM (Pacific Time) on March 31, 2015, for travel between December 17, 2014 and March 31, 2015. Limit one (1) coupon per user account, per qualifying hotel booking every 24 hours.