So far, Z spends a fair bit of time in my back office with the door closed. I can hear lego's and other toys back there. I can hear him talking to himself and reading. He still isn't doing much writing - but he seems to be learning a bunch (nothing specific - some wiring, some gee whiz, a little of this and that).
Writing something every day is going to be challenge. All week, he has not done that voluntarily. Nor has he put his best effort in. I don't really have currency to dangle except pride in his work.
Maybe this is the issue. One of my bigger emerging goals this year is for Z to discover passion. In karate, his instructor keeps asking me "Does he like this? He seems to be just phoning it in". But, Z claims to love karate, despite looking like he is barely there. The only place he actually seems enthusiastic is when draped over something reading, or when playing Wii or other video/computer games. But that is not really engaged in the world.
Z needs to find something that can inspire him, get him engaged with the outside world, fire him up. He needs to learn to show enthusiasm. If he loves something - people should know it.