US A 20% tip… 15/05/2012 Richard “Those three buttons resulted inĀ $144,146,165 of additional tips. Per year. Those are some very valuable buttons.” via The $144,146,165 Button ? notes.unwieldy. Share:Click to share on Mastodon (Opens in new window)Click to share on Facebook (Opens in new window)Click to share on LinkedIn (Opens in new window)Click to share on Reddit (Opens in new window)Click to email a link to a friend (Opens in new window)Click to print (Opens in new window)