I cant tell you for how long Monica as some of the things we do have been in about the last 10-20 years. But here goes: have solar panels, loft insulation,cavity wall insulation, a special plug on our fridge freezer that reduces electricity use. I grow some of my own food, veg and potatoes. We have LED lights in our home. I have an eco kettle and A rated white goods in our home. We recycle garden waste, food waste, batteries,plastic,paper ,cardboard and some food cartons. I replaced handwash dispensers with bar soap. When I go out I take a reusable coffee cup and a refillable water bottle. I use eco friendly wash up liquid and cleaning products. I have tin foil behind my radiators and turn down thermostats when I can. We holiday in the UK only but by car. Have holidayed abroad but rarely. I only buy shoes or clothes when I need them. We switch off lights when we leave the room and close our curtains at dusk. We bought double glazed windows and doors for the whole house about 8 years ago. We have a vegetarian meal once or twice a week. We also have an eco boiler for heating and hot water. We do try.