Screenpresso is the zen master of screenshot apps
Screenpresso is tiny. I have no idea what it's written in -- maybe some newfangled .NET thing, but it sure doesn't feel like the standard fare Windows application. The UI is all custom-looking and the app feels very lightweight.
Like most screenshot apps, Screenpresso sits in your system tray and waits for you to hit a hotkey. But once it takes the screenshot, it does something a bit different: it instantly saves it in its own folder, and then lets you very easily save it to another path with Ctrl-S. As you can see in the screenshot above, there's a handy little "history" screen which lets you access the source files of all previous screenshots. So if you've messed anything up in editing, you can quickly revert to the original image.
That's just one example for the general elegance of Screenpresso. It doesn't do anything exceptional -- it does far less than ZScreen, but that's exactly why I keep coming back to it. By the way, that screenshot was not taken with Screenpresso, which evidently cannot take a screenshot of itself -- how un-zen like.