Found this on Amazon today…
Buy 2, get 20% off
Buy 3, get 30% off
I needed some drill bits and some saw blades. when I went to check out I saw I had gotten 20% off. When i read the promotion i saw I could get another 10% off with another item. it’s a little confusing so I’m not sure if it’s an error or not but I got 30% off when I got 3 items.
Doesn’t look like it’s on all items but you can get some accessories for a pretty great discount.