If you try any of these changes and find there are barriers to getting things done, you might find that you are not alone. Talk to your workmates – they may feel the same way - about working out solutions. Your union could be invaluable here, if there is one where you work.
Sometimes it may seem that a little change isn't really worth the hassle of pushing for, when you could just do these things on your own and leave your colleagues as they were. Consider though that over half the UK’s energy is directly used in the workplace. Those little changes add up, when your whole workplace or entire company start doing them, too. By acting collectively, we can all be part of the solution.