How's this for a sub-culture: Freeganism

Freeganism is a total boycott of an economic system.As freegans we forage
instead of buying to avoid being wasteful consumers ourselves.Perhaps the
most notorious freegan strategy is what is commonly called "urban
foraging" or "dumpster diving". This technique involves rummaging through
the garbage of retailers, residences, offices, and other facilities for
useful goods. Rather, we use other methods of transportation including
trainhopping, hitchhiking, walking, skating, and biking.

http://freegan.info/