Travel companion.
Must be capable of walking from the Pacific to the Atlantic in 2012, bathing in car washes, and like dogs.
Duties include being mellow, enjoying scenery, not complaining too much, putting up with optimistic assessment of bleak conditions and too much sunshine, sleeping outside, occassionally making nice with random locals, occasionally agreeing with paranoia regarding random locals, limiting contact with the reality back home, enjoying the reality of every step forward, trusting, making killer coffee.