Such a difference. After ten weeks in Asia, ten weeks of looking away from the heaps of discarded plastic of terra firma and the floating garbage on the water, avoiding inhaling the stench of drains and sewers and steadfastly ignoring any rats which cross our path, and instead concentrating on the many very good bits, we find ourselves suddenly on the pristine streets of Singapore. Singapore, where the sidewalks look permanently swept and the tiniest sweet wrapper has been dutifully binned, where chewing gum is illegal and cigarettes are only smoked on designated street corners, where the posters on the metro carry more instructions and guidance on how to be…