Hippies tended to travel light, and could pick up and go wherever the action was at any time. Whether at a "love-in" on Mount Tamalpais near San Francisco, a demonstration against the Vietnam War in Berkeley, or one of Ken Kesey's "Acid Tests", if the "vibe" wasn't right and a change of scene was desired, hippies were mobile at a moment's notice. Planning was eschewed, as hippies were happy to put a few clothes in a backpack, stick out their thumbs and hitchhike anywhere. Hippies seldom worried whether they had money, hotel reservations or any of the other standard accoutrements of travel. Hippie households welcomed overnight guests on an "impromptu" basis, and the reciprocal nature of the lifestyle permitted greater freedom of movement. People generally cooperated to meet each other's needs in ways that became less common after the early 1970s. This way of life is still seen among Rainbow Family groups, new age travellers and New Zealand's housetruckers.