It's a supermarket.
As British supermarkets go, it's unusual in having successfully reinvented itself. Originally founded in 1919 by Jewish East Ender Jack Cohen (the name comes from the initials of his first supplier T E Stockwell followed by the first two letters of its surname) for years it was seen as a bargain basement, pile-'em-high-sell-it-cheap kind of place. Then during the 1990s it managed to broaden its appeal to include a more middle-class clientele. There was a time when it was said that 1 in every 7 pounds was spent in Tesco, and the BBC used to regularly run stories about the company's ever-growing bottom line. It was even the subject of a shock-horror book, Tescopoly, as well as being heavily featured in Joanna Blythman's anti-supermarket tirade Shopped. However, in the present decade it has lost market share to the likes of Aldi and Lidl.
The last thing I bought was a Twirl bar for 40p at the Autism West Midlands Ladies' Night tuck shop.
Hmm, thanks for a very informative post, I didn't know Tesco's were nearly 100 years old, thought they started a bit more recent than that, somewhere way back in the 80's or something.