Application Global Properties

Hello: Is there a way to set application properties that are global and accessible from all points in the program. I have tried public static classes, constants, properties on the main form, properties in the app object, but it always tells me that the "prop" is not in scope. How do you guys handle this kind of problem for setting application wide defaults. It iseasy in Visual Foxpro, but i'm pulling my hair out here (what's left of it anyway). Thanks.