EW, are you familiar with yard or garage sales? That's how I clean house once a year and I usually make good money doing it.

We put an ad in the local newspaper, and on the day of the sale we put signs up in surrounding areas directing people to our home. Then we have everything outside in the yard and driveway where people look and gather and buy all kinds of stuff that I would have just thrown away. Do they do that in Germany?

Another idea - - is there a college town or a place where young people are starting out? Maybe they would really appreciate a nice sofa for cheap, or some of your other items.

Good luck!