One of my favorite tools in PS/PSE is the Navigator window. (Go to Window>Navigator to display).
It shows your entire document in a large thumbnail, and if you zoom in on it, the area that’s showing in your working window will have a red box around it. This is great for when you’re zoomed WAY in working on something, and need to move to a different part of your page. Just click inside the red box on the navigator and drag it to another part of the page! But here’s the best part – you can make the navigator as large as you wish!
Drag the navigator window onto your work space, and you can size it up as much as you like. This comes in handy when you are doing very close retouching or cloning – you can see how the overall image looks without zooming in and out all the time! The navigator window refreshes every time you let off the mouse button, so you can see if you like the changes as you go.
I love the Navigator, and keep it open most of the time in my palette bar, but it’s handy to size it up from time to time. Give it a whirl!