Shucks. We'll mostly have to wait for mid-November for the free stuff. At least here in the good ol' U.S.A.
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Currently getting +/- 50 mpg in fall weather. EPA is 31/39 so not too shabby. WAI, fuel cutoff switch, full belly pan, smooth wheel covers.
FWIW, the 1/8" stuff in 4x8 sheets is just over $11 locally. I don't want to discourage recycling, but if a person needs a large sheet, it's obviously not a budget breaker.
Utility companies also consider it a favor when said signs are removed from their poles. (It's a climbing hazard to workers.) Too bad nobody ever removes the nails!