One guy’s dream of decorating his house and serving free hot chocolate has turned into an extravaganza of blazing lights, caroling choirs, a carrot-eating camel and visits by Santa in a Hayden subdivision. Each evening, Jeremy Morris and his wife, Kristy, have invited the public to join them from 6 to 8 p.m. in their front yard for a dose of holiday cheer. Publicity for the festivities, which run through Monday at 1473 W. Cardinal Ave., took off on Facebook. Within a few days, hundreds of people had liked the page.