Abstract: A vehicle bed liner for providing additional weight to a vehicle includes a support layer including a base material having a thickness, where the thickness of the base material is substantially constant across the entirety of the base material, a weight-receiving compartment within the support layer, and a weight-storing article within the weight-receiving compartment adapted to receive a plurality of weight-providing articles, wherein the plurality of weight-providing articles are capable of being positioned in the weight-storing article to thereby provide additional weight to a vehicle.

Abstract: An air ventilation apparatus for controlling foul odors around a toilet, the apparatus including a plurality of ducts disposed about the toilet for receiving air and a motorized means coupled to the ducts for directing foul air and airborne feces through said ducts. One duct carries water and solids into a sewage drain while air flow rises naturally and/or is pulled into an elongated vent by a motorized device (e.g., fan). The elongated vent runs substantially parallel to the duct and includes an opening in communication with the duct. A spring-based flapper valve prevents gases, water and/or solids from backing up into the toilet from duct.