Related Clues:

• Checkout lines
• Information on supermarket food is revealing about fish
• Sign over some poems -- they may be read in library, for example
• Ban secret messages in product lines
• Nipper picked up poems and scanned lines
• Lines in supermarkets? (2 words)
• Lines at a register
• Removes wrapper around fish for help with stock control
• They're scanned in supermarkets
• Stock control patterns
• Scanner targets
• They run parallel in a grocery store
• Filling displays, fish shops may use these