A packaging system uses marked, specially designed packaging to enable confidential purchasing of consumer goods. The antenna is formed from rigid metal, and its length is shorter than the quarter wavelength of the FM broadcast wave. The communications terminal may then correlate a receiver to receive the secondary carrier without the need for a separate synchronization signal on the secondary carrier. The method of mixing the air, water, and particulate cleaning medium provides a coating removal mixture having a volumetric ratio of air to water of at least 100:1 and a volumetric ratio of air to particulate cleaning medium of at least 70:1. The net is made of a transparent or translucent polymeric material having incorporated therein a UV-light absorber.