During your free time in the morning, you can use a small glass bottle for sand to help you keep a brief schedule. Or you can use the time before work to study and build up your knowledge. The brain is more active at this time of the morning. A ten-minute hourglass will help you focus on the acquisition of knowledge. You can also have lots of split-time after work. At this time you can do some sports and fitness. You can use a 30 minute sand clock to ensure you get a healthy cardio workout. In a word, fragments of time should not be wasted on some useless and meaningless things. In fact, we only need to simply use the fragments of time to create a large value.