5. Advantages
› Can store many small items or a few long/bulky items
(Versatile)
› Can keep papers straight
› Portable
› Compactable
Disadvantages
› Heavy to carry (If wood is used)
› Troublesome to carry around
6. Source materials
Obtain help to construct ¡bOxx!
Query if there are any flaws, and correct
Again, final query for flaws