I really like his focus script. However, I think he's treating the symptoms and not the problem. Usually, when I can't focus it just means there's something else that's wrong: 1) I didn't get a good night's sleep, 2) my diet wasn't quite right that day (too much sugar perhaps?) or the previous day, or 3) I've been working too long.
Lack of focus is a signal that something is wrong. In terms of being at home versus at the office, I can have the same lack of focus at the office.
I am not sure I agree with this approach. New projects excite me because they're new and exciting. However, when it comes to finishing projects, I get my motivation from social components that involve me telling other people about my plans.
It's very rare that I solve a problem for myself only and then never share the solution with nobody else. When I tell other people my plans, I read their faces and sort of try to mentally calculate what they would look like if they were pleased by the solution I am trying to craft. Without that end goal of trying to improve something for someone else like a friend or a customer, projects tend to have less meaning and are harder to finish.
Lack of focus is a signal that something is wrong. In terms of being at home versus at the office, I can have the same lack of focus at the office.