It seems there are two strands to these savings, those which are demanded and those imposed.

Services such as energy efficient escalators and manually operated subway doors can be directly imposed on people with little risk of boycott.

In the UK, some of these measures are being adopted, certain supermarkets are starting to charge for bags, in some cases consumers are taking direct action of excessive packaging (apples in cardboard moulds wrapped in plastic for example) by taking the fruit and leaving the packaging at the supermarket for them to clear sending a message to the supermarket that they should rethink their packaging.

The transition to demand such practices is tricky, culture and perception play huge roles in this and they are poorly understood. The optimistic note is that humans are highly adaptable and although object at first tend to accept things after a while. It is not natural to travel by car or plane, use the internet or carry around an entire music library but adaptations happen quickly where benefits are clear. Received wisdom is the thing that needs to be challenged and history has shown that these can be overcome. How did we go from a flat earth to a round one?, why do people buy bottled water? Understanding how these mindsets work and change is where the real challenge lies.