Capture.NET Is a Windows Swiss Army Knife
Windows only: Free application Capture.NET calls itself "the Swiss Army knife of PC tools," and while it does offer a wide array of functionality, calling it a kitchen-sink style tool may be more accurate.
Capture.NET is a calendar and clock widget, screenshot application, color picker, crap cleaner, font viewer, image converter, backup tool, and more. They may not all seem like they go well together (and let's be honest, they don't), but to be fair, Capture.NET's tools are all well thought-out, and the meager 8MB memory footprint for all the functionality it offers isn't all that bad. Here's a closer look at all the tools in action:
This is how Capture.NET looks most of the time. It just sits on your desktop as a calendar, clock, and pixel measuring tool.
The screen capture tool grabs windows, regions, or your full screen, then opens it in a light and easy to use editor.