Phocasa allows you to edit all kinds of images to make refinements as simple as resizing, cropping the image, twisting, rotating and changing the format completely.
Within the interface are the tools needed to do the most common tinkering quickly. It's surely the case that on more than one occasion, you've had photos where you've wanted to change something. However, waiting for an editor to open can be a time consuming affair. Waiting for plugins and editors to open can be really annoying but you'll have no such waits with this program which is incredibly fast. The program is characterised by a sequence of basic to advanced commands ranging from the simple "Delete" to "Rotation" (which isn't that advanced). The problem is, the developers have obviously tried to make this look like a Google product on the download site but it's obvious both from the limited functionality and poor English on the site that it's not.
Nevertheless, for those in a hurry, it's a handy little photo solution.