Over a quarter of Britons will not set foot in a restaurant unless they have a money off voucher with them, according to new research. The study by the comparison website moneysupermarket.com found that 40% of people now use a discount voucher at least once a month, with Pizza Express, Zizzi, Strada, Haha Bar and Grill, and Bella Italia considered to be the top five most popular offer-led brands. The report also found that 70% of high earning diners said that eating out was the one luxury that they were cutting back on. Simon James, moneysupermarket.com’s voucher expert said: “Restaurant discount vouchers have become increasing popular over the last 12 months or so as the nation’s appetite for a value has increased. Brits have cottoned on the fact that you don’t have to pay over the odds to get good grub and in many cases, you can get it for half price.”