Charlie,
   I have the same heart burn that you have with all this frequency congestion.  Guys, when you are in the pattern it's totally unnecessary to announce, crosswind, downwind, base and final.  Just announce entering downwind, and turning final.  Also, totally unnecessary to announce where you are twice in every transmission such as "Longmont traffic Lancair Five Echo Sierra turning downwind Longmont".  It's also against the AIM to announce  "traffic in the area please advise".  Just because you do this procedure and you hear a bunch of other people using it, doesn't make it right.  With very few CTAS frequencies available, keep the transmissions short and to the point, and when you do transmit make your transmissions intelligible, as you would want the other traffic in the area to do for you.
 
I figured up the other day that I have spent just over 31,000 hours in my ATC carrier actually plugged in talking to pilots, add my 4000 hours of flight time and that puts me over 35000 hrs Communicating in the ATC system.  I feel hoarse just thinking about it.

Ron Galbraith
ATC (retired as of 3-1-06)