Do you still have random detailing supplies and tools rolling around in your trunk? Stop that. Buy a couple of these bags, one for cleaning, one for tools, and you're set. Maybe one for energy drink cans too. And one for the passenger who puts their stuff all over. And one.... okay you might need a few. 

• 100% spun polyester fabric
• Bag 15" x 15"
• Capacity – 2.6 US gal
• Maximum weight limit – 44lbs
• Dual handles 100% natural cotton bull denim
• Handle length 11.8", width 1"