InDesign
Colours
If you're creating a new paragraph style and you realize you don't have the color you need in your swatches panel, just double click the color proxy to bring up the new color swatch dialog box.
Shift a Swatch
Do you like an existing swatch but want a lighter or darker version of it? As you're creating or modifying the color in the Colors panel, just Shift-drag one of the sliders, and all of them will move together. Tip: This works in Illustrator, too.