American workers:  If you've got the paid time off, why on Earth aren't you using it?  The U.S. Travel Association says in a new survey that when people don't take advantage of their paid time off, the finger of blame can be pointed at both workers and their employers.

Apparently, supervisors aren't doing such a great job when it comes to reminding their workers about the time off they're entitled to, as well as failing to encourage people to take vacations.

The survey also faults employees for thinking that if they take paid time off, their bosses or co-workers will think less of them while leaving themselves vulnerable to being replaced.

Meanwhile, the post-Great Recession world is feeding into the perception that employees are not as valued as they were before the economic downturn.

This stress also affects workers outside the office, causing physical and mental exhaustion, according to the U.S. Travel Association.