Clear the formatting of your clipboard using a simple script placed in your (mac) dock

clipboard-clean.sh

#!/bin/bash
# This small program cleans up the formatting of your mac clipboard
# (removes any links, coloring, font style, spacing, etc). Drag it
# into your dock and click on it whenever you want to clear some
# text's formatting. It will then close all by itself. Requires
# giving accessibility rights to terminal.

# Suggested as alias here https://news.ycombinator.com/item?id=10143852 
pbpaste | pbcopy

# Took example from http://stackoverflow.com/a/21118491
closeWindow() {
    /usr/bin/osascript << _OSACLOSE_
    tell application "Terminal"
        close (every window whose name contains "clipboard-clean.sh")
    end tell
    tell application "System Events" to click UI element "Close" of sheet 1 of window 1 of application process "Terminal"
_OSACLOSE_
}

closeWindow