I have done both, with varying degrees of success.
Ebay is great for selling items that you may need to bigger market to get the price you want. I have had a lot of luck selling leftover parts from our auto shop as well as baby and kids stuff as my boys grew out of them.
We live in a large housing development, which is well known for our yearly neighborhood sale. We put ad's in the local papers, and post signs around town, and People come from all around. If the weather is good, it is a lot of fun and a great way to clean out the closets! One year we made $500! We were remodeling, and sol the old fixtures, a sink, toilet, and some other misc. house stuff - I was amazed at what people bought!
We usually wind up swapping some things with neighbors too! We got some great furniture one year from a neighbor who was downsizing to a smaller house that year.
We are getting ready for this years sale - next weekend! We have the boys go through their things, and they get to keep the proceeds of anything they sell.
I always set up a clothes rack, and surprisingly, sell a lot of my old clothes. Books and CD's are always big sellers too.
While it takes some time to get organized and set everything out, it can be a great way to de-clutter and make a few $ at the same time.
Unfortunately it is supposed to rain here on Saturday. I am trying to get DH to clean out our garage, and take his antique ca, trailer, and our motorcycles down to his shop so that I can set up in there. So far thats not looking very promising though!
