Recycling, stopping eating meat, and buying less wrapped products (or buying less, in general) were some of the habits that I tried to change in my life, although the big difference comes from big corporations changing their policies and framework to something more environmentally friendly.
However, changing came from seeing that my support for those corporations can help them grow bigger and perpetuate their malicious behavior, therefore, ceasing this behavior was a good way to stop feeding them my small amount of money. People started asking me why, and that would make them think about it, even though most of them were not that convinced, they would question again and again.