Photoshop is certainly the best photo editor out there, but that doesn't mean it can't be enhanced with add-ons.
This is the case of onOne Plug-In Suite, an excellent set of plug-ins for Photoshop that help you solve the most common problems in image retouching. The pack includes six different plug-ins, which are all seamlessly integrated in Photoshop under their own menu in the program's toolbar.
The plug-ins included in onOne Plug-In Suite are the following: Genuine Fractals, which enables you to resize images without any quality loss; Mask Pro, with which you can remove large areas - such as backgrounds - in your images more easily; PhotoTune, an easy tool to correct color, brightness and exposure in your images; FocalPoint, with which you can freely set the focal point of your images; PhotoTools, which helps give your images a professional finish; and PhotoFrame, where you can choose the perfect frame for your image.
All six plug-ins in onOne Plug-In Suite include a short tutorial and are also documented in detail, but you still need some background Photoshop to make the most of them.
onOne Plug-In Suite is an awesome pack of Photoshop plug-ins to fix and enhance your images in various ways.