I get the tension stuff in my neck and shoulders, too.
Amy, I agree that exercise is key. Unfortunately the only exercise I really like is to lift weights and those aren't going in my suitcase. I may have to look up some body weight exercises to do between bookings. Even some "body builders" (a quick routine of star jump, push up, jump up and repeat) would be helpful. I may try harder next time to find a nearby gym where you can pay to just go in for one use and make sure I do some running on a treadmill and some basic weight exercises.