For you Shirt Dressers, we've got interfacing to attach. Now remember there are three pieces that need interfacing. The front bodice and this has its own piece which is piece #3, piece #11 and the undercollar - also remember that these last two pieces I added to the inventory from this post. So attaching interfacing is no big deal right? Well, if it is a big deal to you, have a gander at this tutorial from Gorgeous Fabrics:
If you happen to be using a sew-in interfacing, you'll apply it by using a basting stitch (hand or machine, whichever you prefer) around the edges of the interfacing. Do this just inside of the seamline - like at the 1/2" mark. Hopefully that makes sense. Not hard really.