I have gone plastic-free this January and it has been far more challenging than I thought. Despite having some very ethical shops on my doorstep in Bristol (UK), it takes a lot more time to do my shopping now and there are still many foods which I just cannot find without plastic packaging, most of which really do not need it.
It has been a great eye opener to just how bad the supermarkets are and I think change needs to come through regulation, as a simple small tax for them may be enough to tip the scales and move things in a better direction.