Of course, when we say money, we don’t mean the real thing, but Rakuten of Japan has come up with a rather interesting method for you to keep your sweat at bay, especially when you’re feeling super nervous trying to negotiate a new million dollar contract with your clients and start sweating buckets. Available only in Japan, that is the reason why the handkerchief bills come in Japanese denomination. It will definitely have your fellow businessmen laugh out loud when they see you with this…