A recent survey by YouGov calculated that households could save £440m per year by avoiding branded cartridges from printer manufacturers such as Lexmark, Epson, Canon and Hewlett Packard. Typical households consume 4.85 cartridges a year, with half of the survey respondents only ever buying branded cartridges at a typical cost of £30 each. Private label cartridges branded by retailers such as WH Smith are typically 25-30% cheaper.