Very little is known about self-help strategies and resources that exist among poor households and their role in the prevention of homelessness. This study examines the characteristics of homeless people who stay with their friends and relatives. It also examines their relationships with those who house them. Survey data revealed differences in the helping strategies and resources of those who double up. The respondents' gender, race, presence of children, and dependence on public assistance appear to influence the opportunities to double up with friends or relatives. Recommendations are made to enhance the living conditions among doubled-up households so they may continue to serve as a foundation in the prevention of homelessness (authors). [abstract]