Saving "Twisidia"

While we lived in California we did not have a lot of money because my dad was in Dental School. We had a family meeting about saving electricity, "Turn off all of the light when you leave a room to save electricity" Said my dad. About 2 weeks later came my day...I had just left the kitchen, and remembered to turn off the light! I ran up to my mom and said, "Good thing I turned off the kitchen lights, 'cause we didn't wanna run out of twisidia!"