Ah, the notorious dead-end job. You know, the kind that offers little to no potential for advancement. The type where you've mastered all your tasks, are learning nothing new, and feel as though you're stagnating. Unfortunately, many of us find ourselves in this boat. I, for one, have been on the lookout for better opportunities for some time now, but have yet to reel in something good enough to leave my current dead-end position for, which at least pays well and provides great benefits. It can be a challenge for even some of the most experienced job hunters to pinpoint a dead-end job. Here are some telltale signs that it may be time to start polishing up that resume: 1. There's high turnover. 2. Several people have been in the same positions for years and years. 3. Your job doesn't make good use of your skills. 4. You feel as though opportunities to expand your skill set and grow professionally are few and far between. 5. There's promotion in sight. E...