They may be public enemy number one at the moment but there was good reason to be grateful for the existence of plastic bags when Norwich City played Brighton at the weekend.
Do you remember that advert for Lucozade from the early 1990s when a breathless John Barnes tried to convince us that he had discovered something that could 'get to your thirst fast'?
Nothing captured the chaotic nature of what was going on around Norwich City's penalty area against Aston Villa better than the couple of minutes that Ibrahim Amadou was forced to defend whilst wearing only one boot.