Friends, let me share the love.
My Dad first introduced me to the wonder that is BF. And if my Dad knows something about something, it is cleaning.
As seen on the label, BF is an abrasive cleanser & polish ala the old school Comet cans.... but SO. MUCH. MORE. It's been around since 1882. It can be used on all sorts of surfaces, but I most commonly use it on cookware and my sink. You wet the item, sprinkle on the BF, and let it sit for 5-10 minutes. I use a regular kitchen sponge to scrub & the results are AMAZING. It worked wonders on my All-Clad, shines up my sink, and even brings my glass cooktop back to life. I've found it at my local grocery as well as Wal-Mart, and it usually retails for under $2.00/ can.
Here's a review by Apartment Therapy - they love it, too!
Try It, You'll Like It!