Safety razor become locked into buying their proprietary cartridges, for as long as the manufacturer continues to make them. Subsequent to introducing the higher-priced Mach3 in 1998, Gillette's blade sales realized a 50% increase, and profits increased in an otherwise mature market. The marketing of increasing numbers of blades in a cartridge has been parodied since the 1970s. The debut episode of "Saturday Night Live" in 1975 included a parody advertisement for the Triple Trac Razor, shortly after the first two-blade cartridge for men's razors was advertised. "Mad" magazine announced the "Trac 76", arranged as a chain of cartridges with a handle
Trilogic Expert Cartridge Trilogic Expert Cartridge The Expert Cartridge from the UK company Trilogic was a popular extension cartridge which was introduced in mid-1986 for the Commodore 64 and a later Commodore 128 compatible version, It offered a "fast loader", increasing the speeds of the disk drive, and a "freezer", allowing the program execution to be stopped to be resumed later. Later Cat & Korsh International took over the distribution and the Trilogic name disappeared from the cartridge. A major difference to the other two The Final Cartridge III and Action Replay is that it held its system software in an 8 kB