Just my left ear, which a friend pierced for me at home when I was about 15 and did not have a job to pay someone to do it XD. I usually forget to put a stud in though, speaking of which I just googled the ones I have and found out they are actually worth quite a bit of money, £90 which is actually quite a fair amount of money (about $140+). And that would be because my sister works at a Jewellers in town and had knocked this pair off a shelf or something to that extent, and instead of replacing them she pocketed them and gave them to me after work that day. But yeah, I usually do not wear it, I forget =P.
I do not wear any kind of jewellery any moar though, I used to wear rings and necklaces and stuff when I was in high school (not wearing them all at the same time, dont be silly =P) but I just kind of slowly started to forget them more and more until about a year ago or so, now I just wear this little bead bracelet thing, with a little silver Christian cross thing on it.