Whatever time you give yourself to work, you will use. Nights, weekends, vacations—if you think you need it, you’ll work right through your time off. This is the root cause of the failure of productivity. The goal of productivity is to get as much done as quickly as possible. The problem is, because you’ve prioritized a seemingly endless amount of time to running your business, you’ll continually find ways to fill up the time. The more productive you are, the more you can take on. The more you take on, the more productive you have to be.