It may not be so surprising that many workers want to make a change.  Employees have been having to take on more responsibility and hours was layoffs continue during the recession.  But Eric Lambert with Robert Half International says it's best to leave on a good note, leaving ample notice.

"You know, write a formal letter, make sure that (you) type it up and give it to your immediate supervisor, HR department, of course.  (You) never want to e-mail or text your resignation.  Be to the point, ask what to expect in the final compensation package as you leave.  And, you know, there may be a counter offer, and be prepared for that, as well.  Even if you don't want to accept a counter offer, tell your supervisor that you're willing to consider it.  Usually, you know, within 24 hours is what you want to get back to them on."         

The standard notice is two weeks.

"Depending on the position that you're in, you may need to give more time for transition, but you don't ever want to check out prematurely.  You always want to stay positive.  You know, on your last day, take time to say goodbye to all your colleagues and supervisors.  Smile, shake hands, say thank you.  It doesn't have to be a, you know, a negative.  And, you know, you always want to leave and make sure that you get a good reference from your current employer for your next job."

Don't be surprised if the employer wants to cut ties immediately, for security or competitive reasons.  Lambert says these exit rules are applicable whether you're heading for greener pastures or you've been let go.