The municipal rubbish-dump near to where I live is open on a Sunday, a day when one might be forgiven for thinking that business would surely not be too brisk. But normally it is, with a long queue of cars waiting to enter the site, especially in the afternoon. It is a drive-through arrangement and the road within the site forms a long horse-shoe shape. Tangential to this road are small bays in which cars can be parked while the items are unloaded into large metal skips and containers. Each off-loading bay relates to a particular category of rubbish: batteries, clothing, footwear, glass, plastics, paper, cardboard, wood, metal, green waste, and so on. It is intended to be a slick operation, but it assumes that you, the ‘disposer’, know how to classify correctly the items which are to be thrown away, and it also helps if the sequence of the bays is known before you enter the site: ‘glass’, for example, comes before ‘cardboard’ (but not before ‘paper’).