The present invention relates generally to herbal materials and methods for making such materials in medicinally useful and pharmaceutically acceptable forms. As the forward and rear sections are folded upward, the sets of trolley legs are deployed downward, lifting the folded trailer on the trolley wheels with the main axle and wheels assembly off ground level, such that the folded trailer may be moved about on the trolley wheels without interference from the main axle and wheels assembly. Sender-specific lists are dynamically maintained and can include the most recent folders into which email have been moved. The drive enclosure structure includes a sidewall.