Over here in the Netherlands the rules are definitely leaner. You can have a yard sale as long as you only sell your second hand stuff. Of course when you start operating a business for profit it becomes another story.

Recently many people have been organizing what they call 'junk routes' through various neighborhoods in my region. Often these kinds of events are organized by the municipalities, but these junk routes aren't. Most of them are completely voluntary and anyone in the neighborhood can participate.

Great opportunity to promote some voluntarism and agorism, right? :-)