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This post lists (and briefly reviews) six applications that record videoconferences. If you use that medium, I think these would be quite useful given how malleable and fallible our memories are: if you remember a requirement one way and the client or programmer remembers it another, the recording can resolve the issue and possibly explain why the requirement was stated as it was.
Written for the man who wants to enjoy his shave. User comment: "I bought this as a gift for my fiancé, along with a wet-shaving starting kit and a safety razor. He DEVOURED this book, and finds himself reading it again and again. He finally enjoys shaving. This book has helped him figure out so many things about wet shaving, and has recommended it to all of his friends and family. Truly a great source of information for any man."