Some of the cinema memories we have collected talk about how you were once able to pay to get into the cinema with jam jars. Some cinemas would exchange entrance for a jam jar or two, hoping they would be clean and empty but sometimes they still had jam in! The cinema would then take the jam jars to the local scrap dealers who would pay them money for the empty glass jars.
Some children would take the jam jars or lemonade or beer bottles to the scrap merchants themselves in exchange to get money for their cinema admission and maybe a few sweets, if they were really lucky.