Well, you be the judge if this is best of deals or not.
I started on the dash button craze only this month and was able to spend only 9 out of 18 $4.99 credits I got. Today I wanted to figure out which ones are used and which a good in case I need any of the overpriced Amazon goods attached to these buttons. I registered some of the buttons I know have already used the credit and placed a sample order and to my surprise the credit was there again.
I was able to use my Glad button to purchase this one
Glad Food Plastic Wrap Variety Pack - Press'n Seal Wrap - FreezerWrap - ClingWrap , 3 Count, 420 Square Feet https://www.amazon.com/dp/B01FDB1...pAbE801SZ3
For $2.88 after 20% coupon that I clipped before pressing the button and the 4.99 credit.
It looks like amazon just closed the loophole but in the process they could not track (they could if they logged things correctly) which button was used outside the product list they give you to choose from.
Again this might be YMMV but it worked for me. Amazon might fix this one if there is an influx of usage but for now it works.