Sketching holds an important role in the design process. Even if you’re not good at it, you should still force yourself to sit down and allow you ideas to flow through your pencil. Why? Because you shouldn’t invest massive amounts of time in Photoshop or Illustrator before you have a solid understanding of the desired results. By brainstorming on paper, basic concepts will soon turn into refined/detailed sketches. Seeing the end will help you begin.