Travel Dirt & Grunge - A Question

[Outthewazoo]

I have a well used 2006 2720SL. Just back from a 2 week, 2,200 mile trip with 8 stops.

Dirt and grunge accumulates on the walls, ceiling, ...on everything from travel. Leaves, pine needles, and debris collect on the flaps in the seam next to the walls. This issue has been ongoing, but has became really apparent on this last long trip.

Question:
Can others with a new or newer TM tell me if they have this issue?

Thank you