My projects-in-progress are usually stored in zippered plastic bags. However, the other day I found these awesome plastic boxes at Walmart for under $4.00 a piece. A bargain!
At 15″ x 11 1/2″ x 3 1/4″, they are the right size for storing fabrics, patterns, and everything else
for your project, as well as for temporary storage of sewing items you
will be using during a retreat. I bought three of them, but am going
back for more, as they stack well. Oh… my studio is getting so
organized!