Giftwhale - Giftwhale allows you to create personalised wish lists online.
RetailMenot - The RetailMeNot mobile app allows you to find deals on the go for both online shopping and in store shopping.
Wantt - Create & share wish lists for free
Honey - Honey is a browser extension that automatically finds and applies coupon codes at checkout with a single click.
Anywish.app - Collect gift ideas for your loved ones and share your own wishlists. Add items from any online store. The perfect list maker for Christmas and other events!
Slickdeals.net - Slickdeals: The Best Deals, Coupons & Discounts on everything