What does the passage mainly discuss?

Read the following passage and mark the letter A, B, C or D on your answer sheet to indicate the correct answer to each of the questions from 34 to 38.
Have you ever felt that there aren’t enough hours in the day? These days we have to do our jobs, look after our homes, save energy to help the environment, and do exercise to stay healthy! Like many of us, Alex Gadsden never had enough time. He ran a business and a home and needed to lose weight. So he decided to do something about it. He invented the cycle washer. The 29-year- old now starts each day with a 45-minute cycle ride. He not only feels healthier but he saves on his energy bills and does the washing too.
He said, “It gives the user a good workout. I’ve only used it for two weeks but I’ve already noticed a difference.” “I tend to get up at around six-thirty now and get straight on the cycle washer. I keep it in the garden, so it’s nice to get out in the fresh air. Afterwards, I feel full of energy. Then I generally have breakfast and a shower and I really feel ready to start the day.” The green washing machine uses 25 litres of water a wash, and takes enough clothes to fill a carrier bag. He normally cycles for 25 minutes to wash the clothes, and then for another 20 minutes to dry them. And it doesn’t use any electricity, of course. Mr Gadsden, the boss of a cleaning company, believes his machine could become very popular. With an invention which cleans your clothes, keeps you fit and reduces your electricity bill, he may well be right.