I do clean it from time to time. It's a lease and there are other reasons not to like the car, so it will be going back in two years. The next car will be a long term purchase, so reliability and utility are key. We are also not so interested in bells or whistles on the next car, as it seems that the technology changes so quickly anyway and it's easy to fall into the trap of updating, just like a cell phone. Just want something bullet proof, simple, and useful.