This came from friend Colin (CoolColJ) in another forum.
Try out these active stretches and see how you feel
"
1) tuck chin hard and pull
shoulder blades back together, really stretch the pec minor and hold
for 20secs
2) tuck chin, pull shoulders down and internally
rotates arms as hard as you can and hold for 20secs. Arms will be
locked straight
3) the same but externally rotate them, with
arms coming out to the side away from the body. It will naturally go
there anyway and pulls arms towards the rear a bit, locked
straight
4) reach overhead and rotate arms like your gonna do
a shoulder width chin up and then pull the arms towards the rear
using your upper back muscles, and feel the lats stretch etc. Hold
for 20 secs
5) hold your hands behind
you back, pull shoulders down and back, and pull your head to one
side, looking slightly upward to stretch the neck muscles, hold for
20secs, repeat on the other
"