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Random idea: a journal of mundane quantifiable observations. For things that may be important to science, but which wouldn’t usually warrant a paper being written about them. I bet there's a lot of low-hanging fruit in this sort of thing...
Something like "when changing direction by walking in a curve, I find my eyes are pulled in the direction of the curve, so that I'm no longer looking at the point I was originally looking at." It's mundane, it can be quantified further, it suggests a psychological/physiological process which may be worth further study, and it probably wouldn't warrant an entire article by itself.