What are your favorite euphemisms for "death"?

My boss recently had surgery and now that she's recovering nicely I'm working on a card for her. She and I both have a very dark sense of humor, and I know she was looking up funny death euphemisms to cheer herself up.

So I was thinking I could make a card that says "Glad you didn't kick the bucket, push up daisies... etc."

I'd like to include a huge list. Can you suggest any more?