My wife and I will be spending eight days is Switzerland after our trek around Mt Blanc. We'll be startng in Chamonix and will be going first to Lugano area for three days, then to Lauterbrunnen/Interlocken for 3 days, then Geneva for 2 days, then home. Since I'm thoroughly confused by all the rail discussions, the question is, should we rent a car for this trip, or will we be able to get around easily by train? Also keeping in mine that we'll have all our hiking clothes and possibly a large suitcase with us. What do you think?