Mostly I stick to 4, 8, or 12hr tasks for everyone, depending on my personal schedule on any given day.
There are some characters I set to specific tasks, but not really because I'm thinking they might enjoy it, but rather, because I like the animation. Fat Tony in the Hot Tub, Moog prancing around town in his 24hr task, Barney passed out in the gutter, Sea Captain telling a tale, etc.
And as far as Stampy goes, my GF and I have a ritual/running-gag whenever his 24hr task is up of saying "Hello Stampy, Bye Stampy" as we tap to release, then immediately re-tap him back to his job. Our elephants never get a break, but we chuckle at each other when we hear the other one mumbling that mantra each time it happens.
