▼I came up with good business idea after I laid down on my bed. I have to get up early next morning to participate a marathon event, but I cannot stop thinking in a situation like this. ▼I think this business(service) would have a tremendous impact on the retail market which sell low price goods(mainly from 100yen to 500yen). "What to do " is clear, but "how to do" is not clear and there are many obstacles to realize this idea. I'm going to continue thinking about this business idea for a while.