My favorite Traffic album too, and the only one I've ever owned (even though Low Heel Spark is much closer to my beloved Canterbury music). Blind Faith is probably my favorite Winwood outing, though (same for Clapton).

Some righteous digging there--and at decent prices.

For country women and working class laments, check out Norma Jean's 1972 "I Guess That Comes from Being Poor." Probably not expensive in vinyl.