solar power ski lifts- these can solve the problem of traffic and will reduce the use of fossil fuel

electric flying cars- this will help more people travel and will have less traffic because people will be flying at different levels

hover shoes- These will work live a hoverboard but will be much more safer and it can keep floors cleaner (not stepping in dirt, dirty floors) 

solar powered horizontal elevators- help people get around really long buildings

electric planes- helps reduce the use of fossil fuels in the environment