This is what I do for a living, and have been doing for decades, on three continents. I'm going to give you some serious inside scoopage, so pay attention.
1. Le Landeron, near Neuchatel, is chock full of antique stores at very, very reasonable prices. You may have to climb over things and peek behind things, but you could furnish a house from the stuff in that one village.
2. Just north of Lausanne, near Crissier, is a store called Le Troc. Take the 18 bus to the end of the line at Timonet. Hike directly up the big hill to the 2-story commercial building on the right. There is a large billboard plastered on the side of the building that says Troc. The store takes up nearly all of the top floor of that building. It is jam-packed full of glorious goodies for pennies on the dollar.
3. Come to my house. I've got tons of fabulous things that I will sell you, especially lighting, flokhati rugs, paintings, posters and even a spare Edward Wormley for Dunbar sofa and a Grete Jalk coffee table.
4. Do like I do every weekend and go to a brocante faire. (The one in Nyon is crap. The one in Plainpalais in Geneva is good, especially on Saturday as opposed to Wednesday. The one in Villeneuve is crap. The one in Lyon on Sundays at the canal is orgasmic.) To find them, you go on the website
www.vide-greniers.org. (This means "attic sales"). Halfway down the homepage is a picture of a map of France and Switzerland with little red and green dots on it. Click on the map. The map is covered with localities that are having sales, mostly on the weekends. Green dots are usually lower-end items--think garage sale stuff. The red dots are much higher-end things including alot of furniture.
Any more questions, just ask. Happy to help. I'm also for hire, in case you just want me to get the sh*t and decorate your house.