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'Don't drop gum'
An official sign warning the public not to drop gum.
This idea builds on the insight that people don’t like gum sticking to their shoe. As an official-looking sign, it's versatile in its possible uses, but does need to be used in the right kind of places where this tone is common.
About this campaign
This is a very versatile intervention which can be applied in any circumstance where a more official tone is needed. It proved effective when trialled across a variety of formats from small stickers to bigger banners and floor vinyls in car parks.
34% reduction in gum littering, when trialled in Sheffield station
