The Internet has brought about a whole new way of having a yard sale. Best of all, you don't need a permit to do it. You don't even have to lug all of your things out to the lawn. There is a group I discovered a few months ago, called Swip Swap, that allows you to post yard sale items.
First, you need to find the Swip Swap that is closest to you. I actually belong to two Swip Swap groups because they are so close to where I live. These groups are on Facebook, which makes it easy to get updates and load pictures of the things you want to sell.
Next, join the Swip Swap group. Make sure you read all the rules associated with the group. For example, one of the groups I belong to requires everyone to keep the photos of the items they are selling in an album. The pictures are also suppose to be deleted as soon as the items are no longer available for sale.
Start posting your yard sale items. Don't forget to browse the other members' ads if you need something. I was able to get a $30 toy for my daughter for only $8. Whenever I need anything, such as another end table or a few Wii games, I simply put out a request. I even used the site to locate a man who fixed laptops really cheap.
Another feature that I love on Swip Swap is that you can bargain just like you would at a real yard sale. If you see something you really want, but only have a certain amount of money, just make an offer. Most of the time (if your offer is within reason) the seller will take the deal.