Yellow stickers in shops aren't an unusual sight, as they often mean you're getting a slashed price for whatever product it's stuck on.
They're most commonly seen in supermarkets, with savvy shoppers often hanging about until just the right moment to visit and get their hands on some bargains.
But it turns out other shops have their own symbols and labels to indicate certain things, such as the shapes on Zara tags telling you whether the clothing item runs big, small or true to size.
