Re: where do most people reload?
I have a spare bedroom that is dedicated to reloading and gunsmithing on my many guns. I am careful to not spill powder on the floor and clean up any that spills on the bench right away. I store my supplies (powder, primers) and tooling for my reloading equipment in the closet of that room. I have several benches with reloading equipment on them.
As I live in a dry desert environment, static buildup from walking on the house carpets before entering the room is a problem. The reloading room is also carpeted. So years ago I bought a conductive rubberized large floor mat that I have the bench for the reloading press siting on. The mat is big enough that I stand or sit on a stool on it during reloading sessions. The mat is connected directly to ground which kills the static build up.
While I could reload in my garage it is much more comfortable and convenient to be able to do it inside the house, year round.