The history of privatization has been a constant push to find new ways for the private sector to make money from public services. At first, privatization focused on selling off assets like utility or transportation systems, or contracting out services like garbage collection. Services that couldn't easily be sold off or contracted out, like social services, developmental services or many administrative services, were thought to be impossible to privatize. Since then, new ways to privatize services have been developed and it has become clear that no service is safe. With many of the new ways to privatize services, proponents appear to be trying to avoid using the word privatization. They know that for many people privatization is associated with poorer service, reduced access, and/or higher costs.