If you are a supplier or potential supplier I very very highly recommend that you go to the P&G 19 Key Element training in Cincinnati. If they still do this, that is.
I attended in 2000 and and it was a great learning experience - both informative and fun and free (except for lodging and dinners).
And P&G is a great company to to supply - they really helped me a lot as I built my first quality management system from scratch - even though they never gave us a large amount of business in the time I was there.
I was a supplier to their personal care product division (shampoos and such).