Here is GO User's, MicHawk, organizational confession:
When I pack my kids for a trip (overnight or 2 weeks), each day's clothes are in a gallon size ziploc bag. Socks, Underwear, shirt, pants/shorts/skirt, belt, etc. (Jeans for kids over 6-ish don't fit, so they are packed normally.) This way I can clearly see what each child has packed, I can count the number of outfits they have, and it is easy for each one to find their OWN clothes and to get dressed easily when we are traveling.
Thanks, MicHawk!