Wanderlog - Collaborative travel planner with combined itinerary and map

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

Travelchime - Google Docs for planning your trips with friends.

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

BluePlanit.co - Plan trips in Google Sheets using an intuitive itinerary template with a built-in dynamic Google Map. Export to Google My Maps, organize to-do’s, track costs, collaborate with friends, and more!

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