Perhaps the organisers of the festivals could deposit skips on the field towards the end?
The organisers actually provide recycling points for tents, gazebos and camping furniture. Festival goers can deposit them there at the end of the festival, unless of course they are too lazy to even do that. I really don't see how we can make it any easier for these selfish people.
Charity Shops Making Donations Uncomfortable


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. There were so many tents I thought everyone was still there.