I have both of my ears pierced, but only once in each ear. I refuse to get any more piercings because I have a very low tolerance for pain and also because I think too many piercings look unprofessional.
As for tattoos... I've always thought about getting a tattoo, but never have gone through with it. Years ago, I went with some sisters to watch one of my sisters get her tattoo finished (she was an art major and had designed it herself --- it had a lot of colors so the artist had to schedule 2 appointments so that he could finish it.) Watching her go through the experience made up my mind. No tattoo for me!
If I could get through the pain, I think a small tattoo would look cool... But then I think about having a tattoo on myself when I'm 65 years old and having to explain it to my grandchildren. No thanks!