Which needs based reward trait would you choose for yourself?

I already have quite a steel bladder and I'm quite a loner. I really like to eat and sleep (I have interesting dreams!) so those are not an option either. It could be fun to be carefree, because I often think too much, but it's kind of who I am and I have learnt to live with it whereas forever fresh would be so nice! I could still take a bath or shower when I want to just enjoy it, but I wouldn't have to bother showering when I don't feel like it. And I'd never stink! :love: