Staples offers Meori Classic Extra Large Collapsible Storage Box for $14 (reg $50). Free shipping on orders over $25.

Product Description:
The meori X-large Heavy Duty foldable fabric box is a trunk organizer designed especially for a large portable office, grocery trips, car vacations, and trunk organization. It holds up to 65 lbs. and folds and unfolds in three quick steps. Collapsible and folds flat when not in use. This box features two compartments and two interior mesh pockets. Snaps allow for use of just one compartment and hold the box closed when not in use. Made with extra-tough ripstop fabric. Wipes clean easily with a damp sponge.

• This foldable box is specially designed as a trunk organizer for large grocery trips, car vacations, and heavy-duty trunk organization
• Dimensions: 23.5"L x 13"W x 12"H
• Made of high-grade, tear-proof, dirt-resistant polyester; comes in lava black
• Holds up to 65 lbs.
• Includes two compartments with two interior mesh pockets
• Snaps allow for use of just one compartment and hold box closed when not in use
• Folds and unfolds in three easy steps
• Wipes clean with damp sponge