Here are my Julieanne’s favorite shortcuts for Photoshop’s Crop tool!
To speed up scanning or photographing multiple images, it might be faster to scan them as a single document. Then, choose File > Automate > Crop and Straighten Photos to automate the “cutting apart” of the images into their own documents.
When using the Crop tool to straighten a photo, use the new Content Aware option to intelligently fill in transparent areas with computer generated “Content aware” information in Photoshop CC. The video below demonstrates how.