In honor of my return to school, I, of course, had to make a new book bag for myself. I used the Mischievous Gnome Messenger Bag pattern from Montessori by Hand and some Anna Griffin Sierra collection fabric from Sew, Mama, Sew (along with corduroy from Joanns).
It took about five hours to finish this project, most of which was spent cutting out fabric and trying to figure out the directions. The directions and photos for the patterns are clear and well laid out. It just takes me forever to figure out a new pattern. Next time, though, I'm sure it will go much faster.
I do have one suggestion that I'd recommend if you're going to try making this pattern yourself (one that I wish I had thought of before I finished the bag!). Use a zipper foot to do the top stitching. This will help you to sew closer to the bulky seams around the straps.
The bag is big, sturdy and roomy! It fits my laptop, 2" binder and two textbooks comfortably.