For me it is Huskyliner Weatherbeaters.
They do a MUCH better job of covering the floor area than the rubber Toyota mats.
Great all year round when my work boots track snow, ice, salt, mud grass, stones, etc. into my Tundra.
Nice to be able to pull them out and just hose them off.
2012 Tundra DC 4x4, 5.7L, Silver Sky Metallic, SR5 Pkg, Tow Pkg, OEM Towing Mirrors, Chrome Appearance Pkg, AM/FM/CD w/ MP3/WMA Playback, Rubber Flr Mats w/Door Sill Protector, A.R.E "CX" Cap, BedRug Bedliner, Tekonsha Prodigy Brake Controller, Seatcovers, Westin 6" Oval Nerf Bars