Abstract: Headgear liners are described that may be inserted into headgear prior to storage to remove moisture, deodorize, control odor, prevent fungus, and discourage insects, rodents and other pests from entering or remaining inside the helmet. The headgear liner may comprise a central portion and a plurality of petals extending from the central portion so the headgear liner may conform to that interior cavity of the headgear. In some embodiments, the headgear liner comprises of a nonwoven material with at least one essential oil impregnated into the non-woven material, wherein the essential oil provides beneficial properties to the liner.

Abstract: A sequential task execution system manages and relates a predetermined hierarchical set of autonomous and dependent operations in a user interface. The system comprises a graphical user interface. Given a set of autonomous operations executed in sequence to complete a task, the present system steps a user through the sequential operations. At each step in the sequence, the present system searches an application space to determine whether the step has previously been executed. If the step has not been previously executed, the present system executes the step. If the step has been previously executed, the present system allows the user to either select results from the previous execution or execute the step “on demand”. The system further allows interruption and resumption of operation at the interruption step.