If another designer opened one of your Photoshop documents, would they know what to do and where to find everything, or would they brace themselves for hours of looking through layers or measuring odd margins?
The Photoshop Etiquette Manifesto recognizes that most designers seem to have trouble keeping their Photoshop files in order, and aims to fix that problem. An hour with the Manifesto could make you that much more popular on your design team.
With bits of advice like naming your layers, using a grid, and being cautious with color overlays, it’s not exactly rocket science, but it’s all stuff that more professionals should be adhering to. Check it out.