Sand Mat For Bottom Of Stairs?

We moved down to Louisville over 2 years ago and I am STILL sweeping sand out of the camper....good luck. Seriously, I used to use a 3-step approach: 1) Astroturf welcome mat at the bottom of the steps for the initial foot wipe; 2) those step-rug things that wrap around each step and 3) a throw rug just inside the door. Between those 3 that got 95% of the sand and kept it manageable anyways. What got me wasn't so much the feet but when the kids would have dried sand on their ankles that would just drop off when they hit the couch or bed.

Found the outside shower helped a lot too.

That said, I really miss Montauk and Shinnecock!