I've bought a little jar of vanilla extract. It's dark brown and very concentrated. One little jar lasts me a long time and it gives a really nice flavour to things. It's in the baking section of Migros and costs about 7chf, but is still much better value than those annoying little capsule thingies.

As for baking powder and bicarb soda, I buy small containers of it from Barkat supermarket at Schmeide Wiedikon. They cost about 1chf and last for a long time.

Kate