One sure way to spoil an otherwise nice scene is to frame the shot carelessly and end up with a crooked horizon or shoreline. Fortunately there is a quick-and-easy fix if you understand how to use Photoshop’s Crop tool.

The tutorial below is short, sweet, and easy, but it will pay big dividends—as you’ll learn a simple Lightroom maintenance trick that will prevent against inconvenient glitches when editing images in the future.