Step 3: Step Three - Outfits go in one bag each
Don't just stop there - group everything and place them into grocery bags - that way everything is divided up into smaller bags. This makes finding things, repacking things and going through security loads easier. Be sure not to pack electronics in the bowels of your bag - these need to be readily accessible for going through security.
Also, be sure to pack extra bags and a heavier trash bag - that way you have something to put your dirty clothes in and/or in case something gets wet.
Put your gizmos, iPods, cameras and whatever else you have in a seperate bag. I picked up some cheap bags at an outdoor store that had a big box of unsorted bags on clearance. Be sure to put your shampoo, hand sanitizer, or any other small tube of liquid (remember airport security has limits) in a ziploc bag - not only for going through security, but also so that it doesn't leak onto your other stuff.