This page is dedicated to the Photoshop tips that I use on a regular basis. There are actually a number of ways to do most things in Photoshop, but theses are the ones that I find to be the easiest of the quickest.
1. Quick zoom
To quickly zoom in and out of an image press and hold the Ctrl/Command and the space bar then left click the mouse to zoom in one level. If you and the Alt/Option key you will zoom out one level. You can also draw a box around the area you want to fill the edit window with. Just hold the Ctrl/Command and the space bar then right mouse click and drag a box.
2. Zoom, Zoom and more zoom
To zoom in and out press and hold the ctrl/cmd key and the space bar. Clicking once will zoom into the image one level of zoom. Adding the alt/option key and clicking once will zoom out the image one level of zoom. You can also press and hold the ctrl/cmd key left click and drag a box over the area that you want to zoom into.
3. Quick move
To quickly move around and image that you are zoomed in on just press and hold the space bar. The cursor will turn into a hand, now drag the image. This works for all tools except the text tools.