@r2m You should pick up some of the premium carpeted floor mats. I have a set I swap in on mine at times as well when using for on-road summer travels. They even have an aluminum Lexus badge on them and far thicker than general OEM carpeted mats. Feels like you are resting your feet on a house carpet.
Floor Mats - pt2086011420. Genuine Lexus® Parts & Accessories. Manufacturer Warranty. From the Dealership to your Door.
www.oemvehicleparts.com
"The luxurious, deep-pile, 70-ounce nylon carpeted floor mats are custom tailored for an exact fit. Premium Carpet Floor Mats contain almost 4 times the amount of carpet fibers than the average floor mat. These mats are treated to resist a majority of the stains and odors that floor mats are typically exposed to, while protecting your carpet from premature wear and soiling. The premium carpet floor mats are color-matched to your GX's interior and accented with a brushed aluminum Lexus badge that is stain- and corrosion-resistant."