I am old enough to have used a tea strainer,not of your poncy tea bags in my youf.
It was Tetley in 1953 that drove the introduction of tea bags in Britain, but other companies soon caught up. In the early 1960s, tea bags made up less than 3 per cent of the British market, but this has been growing steadily ever since. By 2007 tea bags made up a phenomenal 96 per cent of the British market, and there can hardly be a home or workplace in Britain that does not have a stash of the humble, but vital, tea bag.