Step 5: Stitch that sucker.
And here is were I will just say it and get it over with... my 2 biggest pet peeves when sewing. Don't do them. They will instantly make what you sew look like homemade junk. Once you get into the habit of this you will find that I was right, so just trust me on this one!!
1 - CLIP YOUR THREADS. EACH AND EVERY SINGLE ONE OF THEM, WHILE YOU WORK. Nothing sucks more than having to fight a thousand thread tails at the end of the project, and it's just going to mean that you'll miss one along the way that will make your work look messy. You didn't spend your afternoon on this project to have something look like a thready mess, right??
2 - IRON CONSTANTLY. AFTER EACH AND EVERY STEP. This is absolutely what will make people ask where you bought that awesome thing that you're styling and not hear those pitiful "Awwww, did you make that yourself? You did so.... great." It just looks sloppy when you don't press. Trust me.
(Ok - I promise no more of that ranting)