Green Idioms for St. Patrick's Day

Here are some useful idioms:

Give someone the green light
...to give permission to go ahead with a project
Ex. We were finally given the green light to begin setting up the new project.

To be green
...inexperienced, immature
Ex. He is rather green and doesn't have enough experience to drive the large piece of machinery yet.

Green thumb
...a talent for gardening, ability to make things grow
Ex. She has a green thumb and is able to grow one of the best gardens in our neighborhood.

Green with envy
...full of envy, very jealous
Ex. I was green with envy when I heard that she would be going to London for a month while I had to stay and work.

Grass in always greener on the other side
...a place that is far away or different seems better than where we are now
Ex. He realized that the grass is always greener on the other side when he saw that his new job wasn't perfect and had its own problems too.

Green belt
...an area of fields and trees around a town
Ex. The city has a policy of increasing the green belt around the city.

Do you know any more idioms with 'green' in them?