I was in Sainsburys tonight getting some stuff and noticed a few items in the frozen section with sale tickets. The best was Ben & Jerry Chocolate Fudge Brownie Frozen Yogurt for 75p, They also had the Strawberry Cheesecake Frozen Yogurt for £1.50. Also SFC combi pack (wings and popcorn chicken) £1.50 (big box). Youngs Chip Shop Fish (4 pack) 50p.
Could be just my store, but it may be others, or other stores may be "sale" other random frozen products.