Edepol! is a free GNU/GPL software to manage your shop or your small business.
Edepol! is only for italian people and lets you to manage customers, invoices, suppliers and warehouse. Edepol! have also a barcode generator function to print labels for your products.
You can download Edepol 1.0.0, go to Edepol! forum or you can see more about Edepol! (italian page).
www.valarsoft.com