Let me add a verbal ++ to the above. I've found (over lots of years of experience), that if you can't express it in pseudo-code you probably don't understand (or don't completely understand) exactly how you're trying to approach the solution. There are lots of times when a lack of being able to express something (completely) in pseudo-code led me to the conclusion that I didn't adequately understand the interfaces I was dealing with and the way I needed to manipulate things.

The really retentive will then go through after the fact and add in the "why" commentary to supplement the "how" pseudo-code. Or, as a button I own says: "Code as if whoever maintains your code is a violent psychopath who knows where you live."

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