Also known as the last day at work before vacation.
It depends on how long vacation will be but there's always something to do. Setting up email auto-response, getting documents ready so that colleagues can continue some tasks and overall making sure nobody needs you.
It can be messy but it's for a good reason. So learn to enjoy these days. They're different for sure, but try not to get stressed out and kick off your vacation in style!
RMach