Last year, American workers left more than 705 million days of vacation unused. In fact, nearly 24% of the work force didn't take a single one of their paid vacation days. We set out to change that – with the help of a children's choir and some empty vacation locations. We armed the choir with simple spins on classic tunes designed to guilt parents into taking a day of vacation. And with a new app that gives you a free Blizzard just for downloading and some guaranteed family time, mom and dad have more one reason to claim that glorious PTO.