Walk or Bike or Scooteride to Work : Walking or biking to work is really only feasible if you life in the town or city where you work. However you could consider a Scooter if you are within a few miles.
Do not set your thermostat to a colder temperature than normal. By doing so, you are not cooling your home and could spend more unnecessary cooling expenses.
Develop a labeling system that helps you get things done. Tag your most important emails with ‘Reply ASAP’, or an equivalent. Less urgent tasks can be marked ‘To Do’, while the least urgent ones can be tagged with ‘Later