Adobe Lightroom is an extremely powerful software tool for serious photographers. From their webpage:
Lightroom 5 makes digital photography easier, faster, and more amazing. Experiment without limits in a nondestructive editing environment. Perfect your shots with advanced controls for tone, contrast, color, and more. Efficiently organize all your photos and share them almost anywhere.
One of my favorite things about Lightroom is the ability to save adjustments that you make to your images as presets. These presets can be exported and shared. Over time you end up building a collection of Lightroom presets and it can really speed up your workflow. I have different presets that I like to use as a starting point when editing portraits, landscapes, and products. Most of the time I find that an image still needs some adjustment after you apply a preset, but they can definitely save you time when you find yourself making similar adjustments on a regular basis.