There was a time when the market leader in UK supermarkets was Sainsbury’s but in the past few years Tesco has shot ahead. Some of the reasons for Tescos dominance
Clever Marketing. I am always impressed by how Tesco’s knows exactly how to get me to go shopping there again. If I haven’t been shopping for a few weeks, they will send vouchers giving me £5 off my next £30 shop. The really clever thing is that usually I spend £20-£25 on a shop at Tesco. Not only do they get me to go shopping, but I spend an extra £5. (My house always has piles of food boxes, I need to buy to get some minimum order delivery )