For retail clients, it would be great to have a report where I could see how each product is doing compared to how it did last week, month, quarter, year. It would be awesome if you could run a "Products Rank" report and see how each product has been doing compared to a specific time frame using the "Add Metrics" function and pull in those report specific metrics. The report should apply to classifications of the product variable as well. That way, you could see how your categories are trending.