I want to improve my writing and tried Jason Fried's idea of an essay being written in five versions: a three-page version, a one page version, a three-paragraph version, a one paragraph version and a one sentence version. It worked really well but the side-effect is I became more critical about my writing.
I have read "The Elements of Style", done the googling and have a list of to-read books; but I think the advices from you will help a lot more.
P.S. I'm a Chinese migrant living in Australia.