I was clicking around to find a movie on my Fire Stick and I saw an offer for 50% off the 4K Fire Stick. Unsure if this can be replicated, but wanted to share.
I found it on the "Live" tab last night but not seeing it this morning. It may be because I already took advantage of the offer.
If you move back and forth between the menus you will see different Amazon promo ads. I flew past it the first time and had to go back and forth between tabs about 10 times before it loaded that ad again.
It only let me do the promo one time.