Here’s an interesting tip Change One – Change All posted about InDesign that I didn’t know about, though I wish I did sooner. 
When you apply a CMYK color to text or an object in your InDesign document and decide that you want to make it a little darker or lighter, you normally would have to create a new color and adjust your CMYK percentages to get what you want – a timely task. It’s much easier to just select your color in the color palette and hold down the Shift key and move one of the sliders. The other three sliders will adjust accordingly along with it to give you your new color.
