Trimming, Expanding and Revealing in Photoshop

A few of my favorite useful little Photoshop commands reside under the Image menu.

Image > Trim. Crops out all transparent pixels. Favorite use: No more eyeballing it! Using Trim crops to the exact edges of an image. Trim preserves drop shadows too.

Image > Canvas Size (Cmd-Opt-C). Expand the canvas size. My favorite part of this dialog box: Checking 'Relative' and typing in an amount is a speedy way to evenly add white space on all 4 sides.

Image > Reveal All. Expands the canvas to show all pixels hidden off the edges of the image window. Especially useful when layering multiple images and something gets lost off canvas.