For those of you who have the non-Overtrail models with the 3-row seating, what are you using as a cargo mat (or tray) to keep your rear trunk area clean? Lexus sells a small dinky all weather cargo mat for the 3-row GX models, and it just doesn't seem practical. If you're going to go grocery shopping, moving stuff, etc, the 3rd row seats are going to be down and that small oem cargo tray is useless. Is the best option for better rear trunk protection is to get the GX all weather cargo mat for the OT model and have the 3rd rows down? And then remove the cargo mat when you need the 3rd row seating? It feels like more work than necessary lol.