Hello Patricia1818
Welcome to the SBB Community.
A point-to-point ticket or a Saver Day Pass is certainly a possible option.
Whether a travel pass or the Swiss Half Fare Card are worth the investment we cannot say. For this we would have to know the total of your trips being done while staying in our beautiful country.
As a rule of thumb, the Swiss Half Fare Card is paying off if you will spend a total of CHF 240 on full fare tickets per person. An amount that is easily spent when doing mountain excursions.
Kind regards
Roland