RobertR237 wrote:
What're you gonna do next year when those kids are all 10 pounds bigger?

Read his requirements again...you will see he was projecting out 5 years.

Parents of children these ages know that as the kids to be those ages,
the diaper bag is replaced by individual backpacks with stuff to keep
each one occupied.
Parents of children these ages also know that kids can cram 20 pounds of
stuff into their "bookbags". After all, that's what they haul back and
forth to school each day.

I have diligently trained my family to take three days of clothing when
we travel on weeklong trips. We wear one set and pack another two. There
is always someplace to do laundry. We can now travel with baggage for
four in one large wheeled duffle.
Of course, all the pilot gear goes into two medium duffles (flight gear
in one, nav gear in another), which fits into a second large wheeled duffle.

Then there is packing for Oskosh...