Or you could make it a daily contest with a weekly overall winner based on their average score.
Actually, a solution that should suit both your desire to acknowledge daily winners and my desire to not add to my workload just presented itself: Keep a list of daily winners and I'll put it up every weekend. If the idea and the thread get active enough, I'll consider making it an automated process and enhancing it. Make it a REALLY big part of iHub, and I'll write an automated entry and scoring system.
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