This is a not-so-known shortcut that will save you a lot of time. When you open one of the frameworks of Preference Photoshop (General Preferences, Plug-ins & Scratch Disks, Units & Rulers, etc.), simply press Command-N (PC: Ctrl-N) and you’ll receive the next set of preferences in the current context dialogue. To go back to previous set of preferences, just …

The Tracking tool (the palette Character) defines the interval between your letters. A negative value brings them closer, while a positive moves them apart. If you work a lot with text you will be changing this value constantly, so it will be useful to have a quick way to reset it to zero on your selected text.
This is done simply …

When the Color Picker window is open click on the button Custom. The default is Rantone Solid Coated. However, Photoshop offers several color combinations. To select a different color pallet, click and hold the mouse over the Book pop-up menu and you will see a list of color combinations to choose what you want.

In the large preview screen that lets you see how the image will appear when you apply the selected filter, if you click within the image it will appear before the application of the filter and if you release the mouse button you’ll see how it looks. So you’ve just created a “before” and “after” filter, or maybe a ‘preview’ …

After making the first selection, go to the options-bar and click the second icon from the left (called the add to Selection), now you can add additional areas without holding down shift like you normally would.