Like you I was tired of painstakingly removing the leaves off my green leafy vegetables. ;)
I built this little device as a timesaver in the kitchen. It works by threading your leafy vegetables' stalk through a hole just larger than the stalk, pulling off all the leaves from the gross woody or chewy stalk. As a bonus, it doubles as a cutting board.
This project is super simple to build and makes cooking a little bit quicker.