Some small things:

- Growing my own vegetables. During the summer, half of my meals are home-grown, and I store the ones I can for the fall/winter as well. And I give away a lot for free to friends/relatives.

- I quit eating meat, after realising the impact the meat industry has on everything from animals rights (most important) to pollution, water consumption etc.

- I try to bring more consciousness on this on people, trying not to be a pain but planting some seeds in their mind.