How much Over the Counter Prescription Medicine (Like Flonase, Tylenol, Cough Drops, etc.) do you keep on hand in case of TEOTWAWKI? I generally keep 4 items of a product (i.e. 4 bottles of Flonase). Do you keep more of an item on hand or less and how many? Do you also hold onto expired products in case of TEOTWAWKI? I don't use expired items but still keep them as long as there is room.