Free: Contests & Raffles.
one of the most overlooked part of reloading is bumping the shoulder if done properly your brass will last a long time there are a few videos on youtube about this. you will also need bump gauges.
I know of the advantages of only partially resizing your brass, but I just always full length resize. It's simpler for me and I don't shoot that much anymore so using up the brass too quickly isn't an issue. And I still get great accuracy.