Sounds like our house.
During the summer, we can grow many of the fresh vegetables we eat. During the winter, we have to buy them.
During the summer, we seldom turn on the a/c, and when we do, it stays set on 80.
I don't water the lawn. If the grass dies, it dies. It's St. Augustine grass - it will come back. I water the garden and potted plants with the dirty water from the aquarium.
During the winter, we keep the heat set between 65 and 68.
I bake more during the winter.
When it's cold, clothes take forever to dry on the line, so if I don't have time to wait for them to dry, I will use the dryer.
In addition to Yule gifts, my niece and my dad both have December birthdays, and two of my step-children (actually my ex's children, but they're still part of my family) have January birthdays.
We stay indoors more during the winter, which means the lights and tv are on more.