In the Appearance and Layout section of the CMS, select Sections.
You can add a new section, like these:
Once you’ve created them, set their status to ‘live’ or else they won’t show in the store.
To get any product to appear in your section, simply tick the relevant section check box on your product’s page.
It’s very easy to re-order your sections: just drag and drop them into place, or use the up and down arrows on the left hand side of the sections.
You can order the products in your sections too: simply click into the section from the above screen, and drag and drop your products, just as you have your sections.