By the time you set up a vacation, you really really need one. But, before you can leave for your vacation you’ve got to take care of a bunch of work so that nothing explodes while you’re gone.
But, by the time you come back everything has been sitting around for probably a week. Which means that you have to dig yourself out of a big pile of work as soon as you get back.
Right now I’m in the working-my-rump-off-so-I-can-enjoy-my-vacation mode. :)