WE store the stuff in the garage, and around the house until we are ready to have the sale. We also get the neighbors involved so we have a 'group' yard/neighborhood sale. (Only three houses worth).
We also have a fairgrounds that has a 'yard' sale once a year that we have set up at a several times.
It depends on what you have to get rid of whether it would be worth the set up, advertising, time etc to set up and try to sell. A donation and then tax deduction may be the better way to go.