Block View.

Seber Cart normally shows products in a tile view across the page and then down the page.  Block View shows one product per line.  With Block View enabled, edit a product and you will now see a html editor allowing you to type in extra information about that product.  Using Block View you don't need to link a product to an article.  You still can if you wish though.

To enable Block View go to Seber Cart->Configuration->Products->Products and change Product Display Type from Tile to Block.