Buy less stuff you don’t need.
If you’re sitting in your parked car, shut it off.
Turn the thermostat up a few degrees in the summer, and down a few degrees in the winter.
Don’t grab that plastic straw.
Use cloth napkins at home.
Turn devices off when you’re not using them.
Turn the light off when you leave the room.
Dry your laundry outside on the line.
Delete social media from your phone.
Play board games. Play card games.
Randomly text your friends.
Don’t put chemicals on your lawn.
Listen to music. Watch classic movies.
Bike instead of drive when you can.
Take a walk every day.