Saving money is going into a supermarket for dinner and coming out with 10 chicken breasts, 2 steaks and 20 sausages for a fiver..
Or using a voucher to get your usual fabric conditioner half price..
Not going out for a meal 4 times a week just because you get money off, you are probably spending 4/5 times as much than on a home cooked meal.
By all means treat yourself but don’t act like some money saving expert when the scheme is literally available to the whole country