The present invention provides reagent compositions, and analyte measuring devices and methods that utilize the reagent compositions. The described strategies include various techniques and tools, which can be used in combination or independently. Advertising material may be disposed upon an outer surface of the handheld implement or the grip. 5 on the basis of the isoelectric point of zirconia, and aggregating zirconia and then aggregating ceria around the aggregated zirconia from the solution to make aggregates. A condom catheter retention ring is provided along the outer top periphery.