Photoshop Shortcut Cheat Sheet

The other day Im watching a tutorial. This lady is all over the place , How did she manage to move quickly from tool to tool? Shortcuts!!!  Yes Ive always known about them and there are a few I use.. But mostly I can never remember I need to know them until Im using them.. 

So today I decided it was time to me to at least know the ones I use most often.. Ive made a List - Perhaps these Can Help you too!!