I’m not typing these shortcuts here to remember them later, I’m typing them here to remember them now.
Command D – Deselect Command J – Duplicate Layer
Hold down H and click for bird’s eye view of document. Release to return to current zoom level.
Shift click on a mask to disable.
Shift plus number pad to change fill opacity.
Option up and down arrow will change leading (should be fucking line-height).
Option click on a layer mask to edit.