Then it's His decision whether and how your life will be supported. Personally, I've always considered the advice I got from a friend a long time ago to be pretty good. The only things worth getting tattooed on are your blood relatives, (you're stuck with them for this life) dead people, (they don't usually do anything that would change your opinion of them) military service, (another one of those things that would be with you forever in a sense) and useful information. (Like the SSN, medical instructions, etc., though I'd tend to put any of these in the least visible place where they'd still be easily spotted in a situation where they'd be needed; SSN probably somewhere just below the waistband, drug allergies high on an arm, and so on.) I might include a bit of scripture that one actually needs as useful information, since it could serve as a really good lifelong reminder of something that one could benefit greatly from. Having had some anger issues that occasionally pop up when I thought they were gone, I've thought about Colossians 3:8 or Proverbs 16:32 somewhere I'd have to see it every day at least in the shower.