For the last few years I've been working on a project, before I buy anything online I try to find it at a local retailer (ideally locally owned). If I do find it, I pay cash. I treat it like a game, it's a scavenger hunt. I'm putting money back into the local economy, helping local shops stay open. Makes it significantly more difficult for pervasive modern surveillance to track which items I look at or purchase. I don't get any emails about it later.