On my own garage kept cars, I will usually just use a damp microfibre to wipe the interior down. The exception to that would be my Ranger, where sometimes I might need a clean muddy scuffs with some APC. The Ranger also gets some 303 every few months to protect from spend most of it life in the sun.
I have recently been using and liking Meguiar's D149 Quick Interior Cleaner.
I like that this saves time on a customer car, cleaning and protecting in one step. Now it does not give the depth of finish like a dedicated dressing such as 303, but leave the interior looking clean and fresh.
Meguiar's Quik Interior Detailer is fantastic. I've yet to find anything better.