Building on the earlier suggestion, make sure to verify wall height for the L model. I've found Smartliner Custom Fit Floor Mats Grand Wagoneer L provides better coverage than stock mats.

Building on the earlier suggestion, I've tried many brands over the years. My kids once turned a backseat into a milk pond, so I get the rush.

• WeatherTech FloorLiner HP Jeep Grand Wagoneer L is the best for fast shipping. They catch everything.
• Husky Liners X-act Contour Jeep Grand Wagoneer L feels better underfoot. In my experience, the L model needs that specific long third-row piece or it wont stay put.

Honestly, I had such high hopes for the Mopar All-Weather Floor Mats Jeep Grand Wagoneer L when I first got my rig, but they were such a disappointment. I spent a fortune on them and then my son spilled a giant soda on our first trip. The liquid just ran right over the low edges and soaked into the carpet... it was a total mess to clean up. Unfortunately, the factory mats just dont cover enough of that extra floor space in the L model. For your Friday deadline, here is what I would do:

• Grab the WeatherTech FloorLiner HP Jeep Grand Wagoneer L if you can find them locally, they handle spills way better.
• Look into TuxMat Custom Car Mats Jeep Grand Wagoneer L for later, though they probably wont make it by Friday. The WeatherTechs feel a bit like hard plastic compared to the nice Wagoneer leather, but at least they actually save your carpet from the kids.