Perhaps you should wear the old Crocs rubber shoes.....they have lightening holes in them you know. Also punch additional holes in your belt.....you already have a few.
Then you could make certain your pants zipper is aluminum rather than steel.
Marty's contribution is the knuckle holes on the back of his driving gloves.
I have some socks that already have holes, so there's that.
Dozens of creative ideas for lightening the car and the load!