Finding out how to clear the cache was not easy, and when I googled it (after searching my phone and Samsung forums), none of the instructions I found corresponded to the selections on my phone. I made the search specific--Samsung Galaxy S7 Android 7.0 Nougat OS. After accessing just about every possible location on my own, I eventually found what I needed under Storage, which showed 0 cache usage for both Facebook and Twitter. I've blocked notifications every way I know how and a few I discovered during this process. The blasted badges are still showing, and I'm done. I removed both apps from my home screen because the badges irritate me to no end. I don't know why they do,, but I swear, I may just uninstall both apps and only look at them on my laptop. Thanks so much for your efforts to help me! I really do appreciate it!