Never - DD was playing with it and lost it years ago.
DH isn't allowed to wear any jewelry, including a watch at work.
Doesn't bother me - I'm just as married with or without it. I've never been a big jewelry person, anyhow, always seem to get rings caught on things and end up ripping my fingers up. Terminally clumsy I am!
I do have my grandparents wedding bands - they were married 49 years, until death did them part, so they are extremely precious to me. Truth is I am afraid to wear them for fear of losing them - I am thinking of having a jeweler put a heart and jump ring on them to wear on a chain or charm bracelet.