I've only had one piercing: left earlobe. Originally, I did it myself when 22 with a sterilized dissecting needle from a kit I had for most of my science labs in college. Needlesstosay, the hole kept closing, I kept trying, and I ended up making three or four holes in the back of my lobe. So, I wait a few months, head to Wal-Mart, and get it done straight. After losing several earrings, including some stunning Celtic spearheads on French hooks, and the last one, a sterling silver mouse, the post snapped off while in my ear. That was a bugger. Since then, I've let my piercing hole heal up, but it's odd. Front and back are still open, but some parts in the center have healed over. Funny thing was that for about 12 years, as long as I had something in that hole, it never got infected. Since that mouse post snapping last year, it likes to get infected about every other month. Nothing big, just a small bump under the skin where the center part healed over.
As for tats, since I knew you basically had them forever, I took my time and tried temp tattos to see what I could live with for the rest of my life. And when I was 25, I went to a tattoo parlor in Abilene, TX, where I asked questions of the owner and his wife. She had a Masters in Graphic Design with a Minor in Business, and he had a BA in Graphic Design with a Minor in Business. Harry was indeed hairy, a great big burly biker and his wife looked the sort that if you asked to bring to cows in, she'd carry them several at a time. And they were great people! As well as me asking about their porfolios and education, they asked me about why I wanted a tat, and how to take care of one, and that it would hurt from a bit to 'the pain the pain!'. I gave him the 1" temp that I wanted, he blew it up to about 3", and that Neo-Gothic ankh still rides on my left chest. After that one, and the endorphin rush is rather addicting, I got a celtic band on my left upper arm (the ravens are very nice), and some odd looking tribalesque angle/Richard Simmons exercising thingy on my right arm shoulder pad.
All my tats are small and fairly indescreet, and I make sure to wear t's with dress shirts, since they tend to be a bit opaque. And even if wearing t-shirts or short sleeves, the arm band rarely shows. Ain't ashamed of them, but they definately aren't business attire. Well, most business anyhow.