Space Bar + Click and Drag – When you’re zoomed in over 100% on a large image hold the Space Bar + click and hold your Mouse and then you can drag/move around the image.

Trackpad pinch and zoom – On a trackpad (or at least my Macbook Pro) you can pinch and zoom to zoom in and out of the image just like on a touchscreen device.

alt/option + cmd/ctrl + i – Image Resize

cmd/ctrl + i – Hue/Saturation

cmd/ctrl + a – To “Select All”

v – Back to the Move Tool

To be continued…