Giving up Amazon Prime?

I need some hive-mind help.

For a variety of reasons, I've decided to cancel my Amazon Prime membership by the end of this month. The price of the subscription is the main reason, but also the ease of ordering tons of crap I don't need, mainly for the free delivery. I'm giving myself a few weeks to do this because I want to watch the upcoming new episodes of Jack Reacher. Also, having taken this membership for granted for over 5 years, I'm worried about things going away unexpectedly when I cancel Prime. The tentacles are long, as we all know, and often easy to miss.

I'll lose Prime Video for sure, but have lots of other streaming options. Music? I've never taken the bait for Music Unlimited or Kindle Unlimited, but what about the basic versions?

What I need is a list of things to look out for. Who here has canceled Prime and been caught unaware by benefits going away that they hadn't thought of?

Thank you in advance.