While technically not a Photoshop tip, I am all about saving you time in your Photoshop edits. And it goes without saying that if you get the light right the first time you'll spend less time fixing it (or adding it) later in Photoshop.
Here in this diagram you'll see the amazingly simple and inexpensive ring light, made from 8 LEDs, that I used to photograph the strawberry in the color-change tip below.
All you need is a set of 10 LED lights that can be turned on continuously ($10+s/h) and a strip of adhesive velcro that wraps around your lens. ($3).
They provide an amazingly bright, even light that wraps around your subject. Really great for macro work. The tutorial said that the white balance might be weird, so I shot in RAW, but when I opened the files, I didn't need to make any color adjustments at all to compensate for the LED lights. (note: in the strawberry color change below, I did boost up the leaf color, yes, but that was because I already had bad color to begin with, not because of the LED light)
Here's a link to the cool website that showed me how to do it, and where to get the LEDs.
(another note: The website didn't say this but, the inexpensive LED supplier is in Honk Kong so, in my experience, it does about 10-14 days for delivery)
Lots of other great tips there too...so take your time and browse around.
Consider adding these inexpensive LEDs to your camera bag. Used individually, as an additional spot light (highlighting the apple stem) or in groups like this ring light LEDs are
an inexpensive way to custom light your subjects. And so portable and lightweight too!
Let your imagination run wild!
And keep watching this week as I add more links to cool websites (other than my own!) where you can find great tips and inspiration. And more reasons to open up that Photoshop!
And don't forget to visit http://todaysphoto.org to view great scenes from photographers around the world...and get Rick's take on "The Original Photoshop Tip Cards".
Or for even more convenience, you can view TodaysPhoto.org right here at the bottom of this very blog page. Scroll down right now and check it out for your own self!