My Fav Photoshop single key shortcuts, part 2

Here's a few more single keystroke shortcuts....

When painting (or using any tool that has opacity) press 1-9 for 10-90%, 0 for 100% to change the opacity of the tool

If a layer is active and the Move tool (or any non-painting tool) is active use the same keys: 1-9 for 10-90%, 0 for 100% to change the opacity of the layer

Press F to toggle between the 3 screen modes (Standard, Full screen w menu bar, Full screen)

Press TAB to hide all floating palettes