I made a " Large messenger bag" from the All People Quilt site. They have free patterns for bags. I made it originally to carry cross shoulder at the Road to Calif. show for all my purchases. Last weekend we went out of town and I discovered this quilted bag was just the perfect size for my laptop and accessories. I used velcro for my closures and attached two pockets inside for misc. I am getting ready to make another for a friend who say mine and wants one for her laptop.
Here is the site.....hope I attached this right.
http://www.allpeoplequilt.com/projec...terns_ss7.html
I did make mine bigger so it measures 18x14 and I made a larger strap since I wanted it to go across my shoulder. It would be plenty big enough for a 17" laptop.