I wear a watch on my right wrist, it feels uncomfortable on my left. I probably only have it on about a third of the time. It's currently sitting on my desk in front of me.
I didn't get a wedding ring. I tried wearing a ring for a few months beforehand, but I was constantly aware of it and again it felt uncomfortable.
I guess jewellery just isn't for me.
Edit: Used to have my eyebrow pierced which was fine, never found that uncomfortable, but I had to take it out for work and the other half hated it.