When you do use checklist effectively, you’ll be much better organized, and you’ll be much more reliable. You’ll experience less stress, safe in the knowledge that you haven’t forgotten anything important. More than this, if you prioritize intelligently, you’ll focus your time and energy on high value activities, which will mean that you’re more productive, and more valuable to your team.
Or, imagine you’re in a sales role and have a long list of people who you need to talk to. You write out a checklist of everyone you need to call and every client you need to see, and start prioritizing.
To use your checklist, simply work your way through it in order, dealing with the A priority tasks first, then the Bs, then the Cs, and so on. As you complete tasks, tick them off or strike them through.
You may find it easier to compile several checklists (covering personal, study, and workplace, for example). Try different approaches and use the best for your own situation.