This is the "common sense" advice. It doesn't apply in a lot of situations and depends on yours. If you're quitting a startup working 60 hours a week and have money in the bank and lots of interest elsewhere, you probably won't have time to properly interview for a good next job. Take the time off,get to know what it is that you really want and what your goals are, and then go for them. There are not many times in your life in which you will have opportunities to take breaks.