My first tattoo was "So it goes" on my right shoulderblade after Kurt Vonnegut died. Sure, it's about as cliche a Kurt Vonnegut tattoo as you can imagine, but it's meaningful to me; so what if it's also meaningful to a lot of other people.
I've got other tattoos since then: bigger, more detailed, more technically impressive tattoos. And I like them just fine, but "So it goes" will always be my favorite and will always be the one that I'm most excited to show people. Even though it involves taking my shirt off in public places.