Electronics are really cheap in Switzerland. (and you can get back the Mwst if not living in Switzerland in addition)
Petrol is relatively (compared to most countries in Europe) cheap in Switzerland.
Chocolate is cheap in Switzerland if you don't buy the "international" brands but rather the store-owned brands.
Beer is surprisingly cheap when bought in stores (again, not the brand-ones)
Public transport is cheap - especially when not buying full-price but holding a 1/2-fare ticket like almost everyone in Switzerland (who doesn't have a GA anyway..)