Which? has revealed its latest supermarket price comparison, where it looks at the cost of everyday groceries at Tesco, Asda, Morrisons, Sainsbury's, Lidl, Aldi, Ocado and Waitrose
Period knickers are absorbent underwear designed to be worn as an alternative to tampons and sanitary towels however these products are still subject to 20% VAT as they are classed as "garments"