This is without a doubt the awesomest second hand shop I have visited in my life. It consists of…read morethree big areas: one with furniture, one with clothes and one with all other kinds of things you can think of. Books, toys, (old) maps, kitchen stuff, etcetera etcetera etcetera. I visited this place quite some times when living in Annecy and never left without buying something - and neither without paying almost nothing.
It's not the easiest to reach without a car - it takes about half an hour (or a little more if it's warm) by foot from the center of Annecy - which also isn't veeeeryyyyyy practical when you buy stuff. But still: so worth it.