For pistol brass, I too don't track the number of firing (I pick up range brass so counting firing won't help).
Instead, I do quality control checks. I look for obvious case damage, extractor marks, rim/neck damage, etc. If I have any concerns about a case, it gets tossed for scrap.
When hand priming, loose primer pockets get X mark with marker and get tossed for scrap after shooting/sorting.