One point worth mentioning for first-timers to Switzerland. If you're trying to avoid motorways be aware that the colour of the road signs is opposite to the UK. Green for motorways, blue for non-motorways. Oh, and Motorways are named with 'A' (for Autoroute/Autobahn/Autostrada)We drive to Switzerland frequently with either car or MO and if you want to go anywhere on a motorway a vingnette is essential or get a fine. As already mentioned the cost is chf40 but it lasts until the end of the year you bought it plus one months grace to buy another if required, ie the following January. Vingettes are available at post offices and garages. If you enter the country via a motorway you will not be allowed in without buying one. I enter over the Jura mountains and drop down to lake Geneva for an easy and free entry.
Have a good trip.