I've been freecycling a lot of items. It's nice, because lots of
people tend to be interested in items you typically find in a utility
closet, particularly when I post a picture I've found on the internet
so they can see what they'd be driving over to pick up.
The other nice thing about posting the pictures is that I usually find
out where I could buy the item again, if I ever needed to replace the
thing I'd given away.
On the other hand, I once read a horror story where a "packrat" was
reacquiring the "retro" kitsch from their childhood through online
sites (e.g., eBay). That was a scary story. A very scary story.