Support Tetenal and other independent suppliers of E6 and C41, and other chemicals.
Support Ilford, Fuji and the independents (including Ferrania if it gets off the ground) for film.
Forget Kodak. I've even stopped buying their cheap-and-nasty "Made in China" batteries. (And that's not saying that all batteries "Made in China" are rubbish, just that Kodak are prostituting their previous good name for a quick buck on products with zero quality control.)