[header] How to have a car boot sale [title] Make sure you're allowed to have a car boot sale. [step] For example, in the united kingdom, it's required that you get a license from your local council first. Knowing you have gained the proper permissions for a sale will give you peace of mind and help you avoid a fine, as well as reassure customers you are not a troublemaker. 
[title] Go through your possessions and work out what you want to sell. [step] Go through all your rooms, draws and cupboards.