What is the best way to maintain the leather seats in a BMW 7 Series?

I just purchased a BMW 7 Series and I want to make sure the leather seats stay in pristine condition. What cleaning products do you recommend and how often should I clean them?

Regularly vacuuming and wiping down the seats with a damp cloth can help prevent dirt and debris from becoming trapped in the leather. Also, be sure to use a specifically designed leather cleaner and conditioner at least once a month to keep the leather soft and supple.