Photoshop is a great tool for retouching and creating realistic mockups, but for those projects that require clear visual communication or a specificity of line, I always prefer vector illustrations.
While working for Victorinox I began a program of illustrating watch face and knife plate concepts that required a great deal of linear detail. The concept became so popular in internal meetings that I expanded it as my career went on. I always like that first moment where a viewer realizes they are looking at a sketch and not a photo. It happens more than you might think.
In icon and wayfinding design, of course, vectors are the standard. While I do enjoy spending time in Photoshop and all the things it can do, there's something about simple design elements and clean lines that is more appealing. When I look at my work as a whole, I think that vector sensibility really comes through. Without realizing it, this project helped me to define my visual style.