I like metaphors. I often think in metaphors. They are useful to explain thoughts or ideas (if speaking with someone intelligent enough to understand). They can add color to descriptions in a novel.
Here's one I thought of recently, but can think of no place to use it in a novel. (That's another purpose for a blog: a place to dump worthless metaphors!)
The name he'd been struggling to recall for weeks popped into
his head, like an air bubble rising to the surface of a swamp
from a corpse anchored to the bottom.
And, speaking of air...
Did you know that you can't put air--the same or different--back into a burst balloon?
Okay, that's not a metaphor. But, given time, I could come up with one.
Prior to writing novels, the author enjoyed a multifaceted career: from decorated combat aviator to advertising professional to global communications director of a major consumer brand. He has traveled the world and met sports, film and television stars, political leaders, and royalty. He graduated from Middlebury College, is married, lives in Germany, and has two grown children.