Here is another question with many answers.
How often do you anneal your brass?
For years, I never thought about it. It seemed like a black art best left to those who shot bench rest. Then I found that I had to do it in order to reform some cases. Then I started experimenting with it. It kept all of that nasty black powder crud out of the action on my 45 Colt 1894 Marlin. It made my cases last longer, and improved my accuracy. Now I anneaI everything. I clean, anneal, size and trim in that order. Everything except the cheap stuff that doesn't wear out like 9mm,40 s&w,45 acp.
So, what do you do?