With the strong vocal presence probably err, present here on macmusic, there ought to be a fair number of vocalists, singers and similar creatures who skulk around these forums. What say you, are there any actually useful techniques, methods and tips for improving your vocal performance you'd like to share?

The most important thing is to let other people hear you. I might suggest you eat some cheese if I don't think you sound "phlegmy" enough. Character, also, is not a judgement YOU make. Rather, it is dictated by how you respond to criticism. And BTW, criticism can be the thing you need to hear before you can differentiate good from bad.