Trains and luggage?

Will be traveling to Switzerland end of August. What do people do with luggage while on trains? Do we schlep it onto and off trains, or do we check it? We will have at least 3 trips where this will be a problem...Zurich to Interlaken, Interlaken to Luzern, Luzern to Zurich.

Hello tomtomsmom, welcome to MySwissAlps!

Please see the page below. If any questions remain, please feel free to post them here.

www.myswissalps.com/train/practical/luggage

Thanks for great advice! Another question... the Fly Rail Baggage Service states the they provide "quicker service (same day) to most popular stations". Does that "most popular" include Interlaken Ost? How can I learn those stations?

You're welcome! Yes, Interlaken Ost is included. There's a link to more information on the page I referred to (this link if you're located in the USA). If you open that and click 'FAQ' you will see a full list of stations.