I do sport very often, more precisely I swim and the swimming pool it's two kilometers from my home. I know it's not very far, however I always call my parents and I go home with them with the car. Sometimes I walk, but for example in winter, in the evening I'm very tired and I'm too lazy. Considering that I know this isn't good for the nature and it would be healthy for me I think I'll try to walk more and use less the car.