We tend to get rid of things that seem useless. But they say there are no rules without exceptions. Some items can be useful and after using them for their intended purpose. For example, a plastic bottle of any household liquid will help you out in that moment, when the hand will not be a funnel for filling fuel tank of a car or tillers. Cut out the side opening, and insert the spout in the filler opening. Than not the funnel!
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