I've noticed that my posts that offer tutorials and advice get lots of traffic. I'm glad that I might be able to help someone. So today I decided to write about the use of interface when creating handbags. My Wayfarer Purse posted above is made with 3 layers of interface. Interface gives fabric more structure and durability. For the purse above I used Pellon Decor-Bond , a fusible interface, for the exterior fabric and the interior lining. I could omit interfacing the lining but I like the crispness it gives the fabric and it makes it more durable as well. Decor-bond is a firm iron-on non-woven backing. Some care is needed when ironing it onto the fabric. I would recommend testing it on a small piece of fabric first. If too much heat is applied it can make the fabric pucker. Instructions on how to use it is included with the bolt. I also found this site with some useful instructions. If you are planning to wash the item you are making in the future then you should pre-wash y...