Hello mark17! It depends on your exact travel plans whether the Swiss Saver Pass or another rail pass is your best option. I suggest to read the overview of rail passes and estimate which pass is most economical and most comfortable for you. If you pick the Swiss Saver Pass, you would purchase one 15-day pass for 2 people. You can use the pass when traveling on your own, but that means your wife cannot use it at the same time. I hope this helps. If not, just let me know!
All you need to know about traveling by train, bus or car in Switzerland.
Hand picked Swiss hotels and other accommodations are right here.