Get a hold of a Swissgear Civic Pro 16 inch Laptop Backpack, and finally get a hold on things. With a padded laptop pocket in the back with room for a 16" laptop, and a large main compartment that opens widely, for easy loading/unloading, and which is backed with both a stretchable mesh zippered pocket for cables and adaptors, as well as a zippered, laminated pocket for items you may want to isolate from the rest of your gear, like bulky keychains, writing tools, or energy bars.
And keep going strong with a front zippered organizer for handy essentials, dual water bottle pockets on the side and the comforts of an Airflow back panel, contoured padded shoulder straps, and even a trolley strap in the back to attach the bag to a luggage extended handle when on the go. So don't worry and be happy, for with the right bag, there's nothing stopping you.