Wikibuy - Find lower prices at other sellers while you shop on Amazon
iotlist - Discover the internet of things
Honey - Honey is a browser extension that automatically finds and applies coupon codes at checkout with a single click.
Fieldbook - Create a database, as easily as a spreadsheet
CouponFollow Cently - Coupons at Checkout is a browser plugin for Chrome, Firefox, Internet Explorer, and Safari that...
Airtable - Airtable works like a spreadsheet but gives you the power of a database to organize anything. Sign up for free.