Many UK supermarkets struggle with sun glare at checkout counters , especially those with large front windows or south-facing entrances. Staff and customers at tills in stores like Tesco, Asda, Sainsbury’s, Morrisons, and Aldi  often experience uncomfortable and sometimes blinding sunlight during certain hours of the day. This glare not only impacts the comfort of staff working at the tills but also affects the overall shopping experience for customers. Fortunately, window f