I find gardening deeply satisfying. It comes in manageable, time-limited, finite task units! My children can roam about getting muddy and digging holes and accomplishing my daily goal of getting them dirty and exhausted! I'm reasonably good at it and it works! In fact, it works pretty much the same every time. It never argues with me. I give it water and nice fertilizer and maybe some lime and it gives me vegetables. It's like a green exemplification of a SMART goals template.
From this you can deduce what I miss most about working.