leave some food on a plate
bad
Running the dishwasher half-filled
bad
using a lot of toilet paper
bad
use rechargable batteries
good
recycling old thing
good
drink from a glass and avoid using a straw
good
walk more
good
gardening
good
using air conditioning non-stop
bad
bring a water bottle to school which can be refilled
good
driving a car
-
using single use plastic bags
bad