An anonymous reader writes: We all know somebody who changes jobs like changing clothes. In software development and IT, it's getting increasingly hard to find people who have been at their job for more than a few years. That's partly because of tech companies' bias for a young work force, and partly because talented people can write their own ticket in this industry. Thus, I put the question to you: how often should you be switching jobs? Obviously, if you find the perfect company (full of good people, doing interesting things, paying you well), your best bet is to stay. But that's not the reality for most of the workforce. Should you always be keeping an eye out for new jobs? Is there a length of time you should stick around so you don't look like a serial job-hopper? Does there come a point in life when it's best to settle down and stick with a job long term?