It's easy to know when you're in the right job, and it's a piece of cake to recognize an awful one. But what about the position that seems only okay? How can you tell the difference between a bad day and a bad fit—especially in a shaky economy when the voices of reason all suggest that having a job, any job, is a good thing? In my many years in management and consulting, I've noted six signs that it's time to move on.

Six Signs That It's Time to Move On

1. No money would ever be enough
2. Nothing you do makes the least bit of difference
3. You're not learning anything
4. No one ever talks to you about the future in a positive way
5. You hate your boss
6. Who you are at work doesn't relate to the rest of your life

Ronna Lichtenberg's most recent book is It's Not Business, It's Personal (Hyperion). She's at work on a new book about career success.