3. A hole on the measuring tape
Many people who use a measuring tape completely overlook a hole at the very end of it. Of course, it is there for a reason. As a matter of fact, it is designed to help out people who are using it on their own. You can simply hook it up to a nail and continue measuring without asking anyone to help you out and hold the other end of the tape. It is such a small thing that makes a huge difference.