Useless without pictures gonefishin, useless!
Best to think long and hard about each one. I think it was about a 4 year ordeal for my first one---between deciding on what it would be (meaningful) including the artist I trusted enough to tattoo me.
I got my first in July of last year. I like this pace, 1.5 years later for my second. Though...I bet the third comes sooner.