This chapter discusses how grounded theory has been developed in order to facilitate its application in daily situations by sociologists and laymen. The practical application of grounded sociological theory, whether substantive or formal, requires developing a theory with several highly interrelated properties. Deducing practical applications from formal theory rests on the assumption that the theory supplies concepts and hypotheses that fit. A theory with controllable concepts of sufficient generality, that fits and is understandable, gives anyone who wishes to apply these concepts to bring about change a controllable theoretical foothold in diverse situations. A grounded substantive theory that corresponds closely to the realities of an area will make sense and be understandable to the people working in the substantive area. This understanding can be crucial since it is these people who will wish either to apply the theory themselves or to employ a sociologist to apply it.