I decided to give my shoulder a little try- we have one of those all in one Nordic Track weight machine at work- I put on some obscenely low weight and did 3 sets of 20 chest presses and lat pulldowns to the front- didn't seem to hurt my shoulder (but hurt it later by trying to press off with right arm playing with the dog frown )

still single digits here- 4 miles of "hills" on the treadmill