Abstract: A roller box assembly includes a roller box and a bedding product contained in the roller box. The roller box includes a cardboard box portion, a pair of fixed-axis wheels, and a handle. The fixed-axis wheels are disposed along a corner edge of a bottom portion of the box portion. The handle portion is attached to the top portion of the box portion. In one embodiment, the bedding product is a mattress that has been compressed and rolled into a cylinder shape. A retail customer can purchase the bedding product at a retail store, and can then transport the purchased product out of the store by pulling the box from the handle such that the box rolls on its rollers.

Abstract: A method for car wash and maintenance includes steps for car-washing, post-washing for preparing the car for the driver's riding, and performing a basic car maintenance. The step of performing a basic car maintenance is performed during the step of post-washing. The step of performing a basic car maintenance also includes steps of coordinating in space and time with the step of post-washing, accessing the car, and maintaining the car. The step of coordinating in space and time with the step of post-washing is performed by providing an extra accessing space for the maintenance work. The extra accessing space is provided by a pit below the car. The basic car maintenance includes oil change process. The maintenance work is coordinated to be performed under the car from the opposite underside where the post-washing work is performed.

Abstract: Methods of increasing blood testosterone levels of a subject can comprise administering an iron chitosan chelate to the subject. The chitosan component can have a weight average molecular weight from about 0.5 kDa to about 50 kDa. The iron chitosan chelate can be co-administered with at least one ingredient selected from the group consisting of ascorbic acid, kelp, iron, and zinc. Additionally, iron chitosan chelates can be formed by hydrolyzing source chitosan to form a hydrolyzed chitosan mixture, wherein the chitosan mixture includes a desired portion; separating the desired portion from the chitosan mixture; and chelating the desired portion with iron.