There is alot of available wisdom to tap here at MC, as I found out on the 'Breath Control' thread. Now here's a related question: what do you singers do to warm-up before a gig? I've got a competition coming up in a couple of weeks, and am trying to be a lot more analytical about singing technique than my usual "let it fly" style of singing. What physical, breath, tonal or concentration exercises do you use?