I have volunteered in one of our local charity shops for nearly 16 years now, and I love it.
We have a paid manager and two other paid, part time staff.
There are many volunteers, who all have their chosen days that they work, and they all work hard. All our profit goes to the day centre and helps keep it running.
I do not sort donations, but do often, with my co-worker, price various articles.
Could be clothes or bric a brac, shoes or handbags.
This shop is a true one off, not part of a big national charity, and so we do not have missives from afar, directing us how to run the shop. Peace all round.