Oh my! We are WAY different packers... kids get an outfit a day, plus two (so, one-and-a-half). Then, the boys get one pair of dress pants and two dress shirts. Girl gets two "fancy" dresses. That's it! A sweatshirt for each, underwear, swim suits. Card games like Uno, WaterWorks, and chapter books.
Each kid has their own suitcase which they pack and carry. I print out a list of what to pack; they pack it.
Our kdis are 5, 5, 7, and 11.