Job Satisfaction

This sounds all too familiar. I think it may be age related (I'm 48), and I have kind of just been looking around and thinking "is this all that there is?" That sounds a bit more depressed than I actually feel, but it's along those lines. I actually like my job... but I've been doing it for over 25 years. I have no desire to go up to senior management
Coming up on 42 (we really have been posting here forever), and same.