I make my own fries and prepare my own homemade mayonnaise.
I wrap my gifts in beautiful fabrics instead of paper packaging.
I turn down the thermostat or heater half an hour before going to bed or leaving.
I use all my leftovers to prepare a weekly meal.
I ride my bike once a week to work.
I use tap water instead of bottled water and replace my disposable filters with activated carbon.
I install timer sockets for my electrical appliances.
I choose a fridge and a washing machine A+++
I don't use disposable dishes when I eat outdoors.
I install thermostatic valves on my radiators and set them to max. 3.
I prefer local and seasonal fruits and vegetables rather than imported ones..
I avoid air conditioning as much as possible (if I am too hot I hang a damp sheet on my window to cool the room. If that's not enough, then I prefer the fan.)
I set my fridge at 4° and my freezer at -18° to keep my food in optimal condition.
I make my own Christmas decorations (origami, cotton, cut-outs) rather than buy them and I choose LED Christmas lights.
I run my errands on foot.