4. Meditate
You don’t need to go to an expert for this, at least not for the purpose of basic focus and concentration. Meditation is like practicing to focus and works to clear your mind of gunk. It may not be totally convenient, but it’s a great thing to do in the shower or while your dinner is in the oven at home. By working on conditioning your mind to cancel out useless thoughts, you’ll overall be a more focused person.