Thanks for the replies guys.
LakeSuperiorGeezer - Thank you for the link to such a big list.
Bruce - Thanks for answering the questions. I particularly like the wifi antenna tip.
WallabyCreek - Hi Alan, I was about to reply to say how good the book looks when I worked out that you are in fact the author! Thanks for posting the link for me. I've just sent you a message.
All the best,