All you people saying that getting a tattoo is stupid because it will get all wrinkly...... that's why you don't get it on a really exposed area, somewhere you can cover up. Mainly because, who is going to want to see some old person under their clothes anyway, tattoo or not? Besides, the colors might fade so much by time it gets to that point, that it won't even matter.
And definitely don't do spur-of-the-moment tattoos. My friend once got the word "Legit" tattooed on his abdomen, and apparently he had no excuse of being on something when he got it...... *facepalm*