Ah. I agree with your first point, it's ineffectual. But my hope would be that an app can help people boycott more effectively (who would guess that bottled waters are sold by Coke and Pepsi?) and have a greater total effect.

I don't think it would be like excluding all the products that don't fit my world view, but excluding all the products from actors whom I think are doing severe damage to the environments and legislatures of the world's nations.

> (who would guess that bottled waters are sold by Coke and Pepsi?)

Maybe it's a bit of a reach, but the Coke/Pepsi vending machines here have water in them and that was how I figured out each company also had their own brand of bottled water they also sold (Aquafina for Pepsi and Desani for Coke).

If you research it you'll find both are bottled filtered tap water. For awhile I tried figuring out where they were bottled, mostly unsuccessfully. The holy grail would have been finding competing plants in the same city bottling the same municipal tap water, but I was unsuccessful. Not all corporate bottling plants bottle all products at every plant, I couldn't figure out which of my coke products came from the nearest syrup plant in Chicago or bottling plant in Quincy although it seems all Pepsi products are reminiscent of the proverbial "thousand mile salad" and come from the sand states (or what we in the center of the country call fly over, because we fly over those states on our international vacations which we can easily afford because we don't live on the coasts)

Oh yeah, I think at least one of them says it's tap water in the fine print on the bottle (or did). Pretty funny though.

Not water, but oddly, Dr. Pepper is bottled by Pespi here. In other parts of the United States, Coke or 7up bottles it.