After a discussion on The Well Trained Mind forums about workboxes, I was asked to share my way of doing it. Rather than clutter up a thread over there, I figured I would share it here. For everyone to enjoy.
My children each have binders that are color coded to them. On the inside of the binders are binder pouches that hold their work for an entire week, each pouch holding a days worth of work.
If there is a book or something that doesn't fit in the pouch, the information is on their assignment sheet of what to do.
We school 4 days a week, so each week is preloaded on Sunday night!
When they are finished with thier work, it gets put in the back of their binders in a finished work pouch, which I correct at the end of the school week.
And that's our system! It's easy, quick, and the kids are in control of their learning.