A lot of Youtubers and Bloggers give their audiences promo codes. For example, recently Audible is EVERYWHERE. It's a site where you can listen to books and the promo codes give you one book for free. How much have you been able to benefit from these?
I have noticed the audible codes for everyone too. I have never used them personally though. The last promo code I have used from a podcast was for a free month of Nature Box. It's worth a try if you want healthy snacks.
I have heard of NatureBox a lot too! Do they really taste good? Because the problem with sponsored videos is, I never know if the stuff is any good in reality.