it has a note - This post was written in early 2008 and looking back on it, there are a couple of tricks that I wouldn't recommend anymore - or to which extra w

it has a note - This post was written in early 2008 and looking back on it, there are a couple of tricks that I wouldn't recommend anymore - or to which extra warnings need to be added. I've added paragraphs like this where necessary. Enjoy! :-)