Depending on how much time you're going to spend in Switzerland.
https://www.swiss-pass.ch/swiss-half-fare-card/
Last time we used them, 100 francs each, covered that expense in a couple of train rides.
With the Pass you get half price on basically all public transport (trains, cable cars, boats....)
One town we keep going back to is Murren.
https://en.wikipedia.org/wiki/M%C3%BCrren
Only way in and out of the village is cable car, no private vehicles. Very quiet.
Because we had half fare passes, we would do things like have lunch in Interlaken.

In the train stations look for the "Drinks of the World" shop, micro-brews from everywhere.