Photoshop Shortcuts

1. Apple+U: Hue and saturation
   
2. Apple+T: Free transform
   
3. Option+delete: changes color of image to your foreground color
   
4. Apple+J: Duplicate layer
   
5. Apple+E: Merge
   
6.  Apple+F: run the last filter
   
7. Apple+Z: Undo
   
8. Apple+A: select all
9. Apple+S: Save
10. Apple+N: New document
    
11. B: brush tool
    
12. D: Sets swatches to default
    
13. X: Swap swatches
    
14. Apple+click layer: put selection around text 
15. Ctrl+click layer: Raterzize layer
16. Apple+X: Cut
17. T: Type tool
18. Apple+D: deselect
19. Apple+C: Copy
20. Apple+V: Paste