RetailMenot - The RetailMeNot mobile app allows you to find deals on the go for both online shopping and in store shopping.

Agoda YCS for hotels only - Agoda YCS for hotels only is a traveling app that comes up with features to help users in minimizing their hotel booking efforts by providing them with a large number of choices all around the globe.

Honey - Honey is a browser extension that automatically finds and applies coupon codes at checkout with a single click.

Gopher - Better hotel deals automatically, every time + cash back

Slickdeals.net - Slickdeals: The Best Deals, Coupons & Discounts on everything

HotelTonight Escape - The best getaway deals for tonight (or the weekend)