You can create a Forms Library just as easy as creating any other library in SharePoint. The following screen capture shows the Forms Library template:
Although it is easy to create a Forms Library using the App template, if you are planning on designing forms with InfoPath Designer, it is usually simpler to create a library as part of the publishing process. One advantage of using the publishing process to create the library is you can choose which fields you want to create library columns for and which fields you only want stored in the XML body of the document item. In a later walk-through and in the lab exercises, you will see how to publish a form template and create a library at the same time.