Does anyone out there have any experience shopping for dairy-free foods?

I am working on finding a list of basic foods that are milk/egg free and any suggestions of good shops (even in Zurich) would be useful.

Coop have a couple of unsweetened soya milks that I am testing (think I will go for the cheaper version) but what I could really do with at the moment is somewhere that sells soya margarine or another dairy-free alternative.

Thanks