Flow

Flow is a AppleScript and Bash script bundled within an automator workflow that allows you to pre-name screenshots.

1. Download Flow and unzip.
2. Copy Flow Capture from /dist/Flow
3. Navigate to ~/Library/Services and paste Flow Capture.
4. Open System Prefrences, click on Keyboard and then the Shortcuts tab
5. Select Services in the left panel.
6. Select Flow Capture underneath the General Section (usually the last item on the list.)
7. Double click on Add Shortcut to the right of Flow Capture and enter your desired shortcut combination; for example Command + Shift + 2 (⌘⇧2).
8. That's all. Welcome to Flow. Happy screenshoting!