Weight Reduction for better FE

[suprapsu]

I was thinking about some of the things you can do to your car to get better fuel economy and thought weight reduction is a great way to up the MPG. The rule of thumb is for every 100 lbs you shave off you get 1-2 % better MPG.

I have a Civic VX and I am going to weigh my spare tire and other parts when I get a chance. I will update this post accordingly so please checkback.

Weight Reduction:

Spare Tire - Take out (18.6 lbs)
Jack and Tools - Take out (4.9 lbs)
Hood - upgrade to Carbon Fiber or Alloy Hood (appx 15 lbs savings?)
Fenders - upgrade to Carbon Fiber or Alloy Hood (appx 5 lbs savings?)
Passenger Side Seat - Take out (appx 15 lbs savings?)
Battery - Upgrade to Lighter Weight Battery (approx 25 lbs weight savings)
Wheels - What could be lighter than the Civic VX rims?
AC Compressor - Removal ( I will weigh the weight savings, appx 15 lbs)

What other mods can you think of?