Picture the scene. You run a beach bar on a lovely little, laid-back Thai island. Every night your customers get through copious amounts of Chang and Singha beer. Life is good. The only problem you have is what to do with all those empty bottles. Well, one enterprising bar owner on Klong Nin Beach, Ko Lanta had his own light-bulb moment when he came up with this solution which brings a whole new meaning to ordering a ‘Chang Light’ . . .