TIP #5: Use auto focus on your lenses.
You have the option to choose manual focus (MF) or auto focus (AF) on each of your lenses. I choose to shoot using manual camera settings, but auto focus on my lenses. The lenses do a fantastic job of focusing on their own 99% of the time. I feel like there is no need to take the time to manually set your focus for each shot. There are so many other things to worry about. Let the lens take care of the focusing. And honestly, I don’t think that my manual focus is even as sharp most of the time as the auto focus.
When choosing auto focus, there is a switch on the lens that has AF and MF. The switch is usually near the camera body and usually near the top of the lens (at least with canon cameras but look around it shouldn’t be hard to find).