If you're looking for cleaning products (leather and much, much more), I'd suggest taking a look at Griot's Garage (
https://griotsgarage.com). I've used their leather cleaning/conditioning products since I had my E70. Very happy with them...
I don't think they're a sponsor out here, but they are a partner/advertiser with the BMWCCA. (That's how I was introduced to them...)
In fact, shopping their website can be a bit addictive. (Why yes, I could really use a curved brush to clean my rims!)
