Abstract: The solar panel washing device is a mechanical device. The solar panel washing device incorporates a cleaning structure, a photovoltaic cell, and a water source. The cleaning structure forms a fluidic connection with the water source. The cleaning structure cleans the photovoltaic cell. The cleaning structure discharges water received from the water source onto the photovoltaic cell. The solar panel washing device removes dirt and detritus from the photovoltaic cell.

Abstract: The portable pet ramp is configured for use with a pet access door. The portable pet ramp is an inclined structure that joins the horizontal plane that contains the threshold of the host door with the horizontal plane that contains the threshold of the pet access door. The portable pet ramp attaches the threshold of the pet access door to the horizontal surface that supports the threshold of the host door such that a pet may walk up the portable pet ramp to pass through the pet access door. The portable pet ramp is removably attached to the pet access door such that the host door may be further used for the ingress and egress of humans. The portable pet ramp comprises a plate, one or more brackets, and a slide stop. The one or more brackets and the slide stop attach to the plate.