Cleaning interior...

I would say water is good for cleaning dirt, and then just use a conditioner to make it look cleaner and smell better. I'm sure Bob will drop by and let you know what he uses. I know he doesn't like shiny either. I use Meguiar's stuff which is probably a bit too shiny for your tastes.
 
I think in the other armor all thread I posted about 1Z Cockpit Premium. I just love this stuff, it saves me so much time. It is a cleaner and a protectant in one. I do not use it as a long term protectant but, rather as a quick detailer to do cleanings in between full interior details. You can get it over at the Autopia store at the link below. It is not very expensive but, you will go through a lot of it since it can be used on just about every surface in the car. It does have a matte finish which I really like and the smell is similar to a new car smell.

http://autopia-carcare.com/1z-924510.html

Here is my interior which I did a couple of days before this photo.
2760dsc00029.jpg