TopVouchersCode.co.uk - Welcome to your favourite destination of voucher codes, promo codes, discount codes, & free shipping offers!

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

Groupon - Each day Groupon offers a deal through local vendors in your city.

DontPayFull - Verified coupons and discounts for a variety of online retailers.

Dealspotr - Dealspotr is like Wikipedia for deals.

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