1. Sticking to the desk job
2. You think you have privacy
3. Asking for a raise at a bad time
4. Treating your boss like a boss
5. Revealing too much to coworkers
6. Undervaluing your subordinates
7. Overspending company money
8. Being too honest
9. Basking in your success
10. Waiting for things to happen
11. Avoiding office politics

via theinsider