First trip in Trayon Seeker

Not sure what they are called, they in a way would resemble shade cloth, but they are a lot better & alot more expensive. I think they come in green or blue, some sort of camping mats.

Anyhow we purchased some of the matting to lay under the camper floor & also to use as an annexe. Now that we're living in the shed (building a house) we have set it up out front of the shed (a lot of clayey dirt / sand). And I can say it's absolutely worth the money!
Dirt does not stay on top of it for long (seems to keep clean) and it doesn't let anything back through. Even when it's been raining and muddy, certainly keeps inside the shed much much cleaner! Very durable and slightly cushy feel under the feet.

I'd give it a consideration, you can buy it per meter.

Nettie

Shade cloth, the woven type is best. A couple of layers makes a great mat in the sand, cheap and versatile.

Pete

Perfect mats for the shower are the rubber floor mats out of the car. One in the shower & one dry one to step out on.
My tip. The Trayon is heavy enough so don't overload it further with unnecessary gear. Where possible each item carried should have 2+ uses.
Cheers Craig............

In desert country we prefer a simple woven tarp for the shower - sand and prickles won't come through it, and use some sloping ground so the water drains out the back of the shower tent.