Manually warping and blending logos onto product photos takes 15-30 minutes each time. Smart objects in Photoshop transform this repetitive process into a one-time setup that creates reusable templates. This technique lets you drag and drop any design into a pre-configured mockup that automatically applies warping, blending, and lighting effects.
Read the full article here: How to Create Reusable Drag & Drop Mockup Templates in Photoshop Photoshop Roadmap