Lots of that stuff (bulk oil in your own container etc.), reusable containers, containers that are recyclable, is available through food co-ops. We used to belong to one when there was on closer to us, my daughter and her husband belong to one. You get to sit on a board or committee, decide what type of things the co-op should be bringing in, order the stuff from the best suppliers, help unpack it, sort it, and then get a bargain price on it. I don't care if you think it's a communist idea or not, it works great. (not you Doug, I know you have a pragmatic side, I'm talking about the fools who think communism is a political philosophy).
Stan