Tesco wiper blades half price,ownbrand now 1.50 were £3.
Better ones now £3 were £6.
Also saw half price redex diesel and petrol fuel cleaner now £1.80 were £3.60
Also tyre inflater half price,the one that plugs into cig lighter,cant remember price exactly 6 ish was 12 ish ;-)
Dont know if national,was in edinburgh hermiston gate.