US Businesses Are <br />Starting to Embrace 420 Due to an increase in marijuana <br />legalization around the country, corporations are making more <br />marijuana references on social media <br />and in their marketing. The references have become especially noticeable as 4/20 approaches. Kit Yarrow, consumer psychologist, via 'Newsday.' This 4/20, Lyft is giving rides <br />for $4.20 in some U.S. cities. Carl's Jr. is also offering a burger with CBD oil on 4/20 in the city of Denver. For years, Ben & Jerry's <br />ice cream flavors have <br />alluded to cannabis use. This 4/20, the company is giving away free orders <br />of a type of ice cream called "Half Baked."