Are my contributions to the forthcoming book
97 Things Every Programmer Should Know by O'Reilly. I hope they're accepted.
I've been thinking about practice a lot recently. The Average/Mean Time To/Since Green Game has a large element of practice designed into it. In his excellent book
The Fifth Discipline, Peter Senge writes:
The total absence of meaningful practice or rehearsal is probably the predominant factor that keeps most management teams from being effective learning units.