we have "right up my alley" in ours. When we first met, I think I used that term to describe him. And he apparently had JUST told his mom and friends that I was right up his like a day prior. So he felt like "wow, this person really thinks just like me". When we got our rings figured out that's what we put in them. Since I don't wear THAT ring in my normal set, that ring is locked up when I am not wearing it. The sentiment is a big deal to me.