Hooks.... sturdy & keep groceries from flying out of their bags. They're also very good to hang your purse on, to keep it from riding top-down on the floor of the car. $3.99, organize.com Car Seats, Ideas, Cars Organic, Grocery Bags, Cars Hangers, Travel Accessories, Products, Cars Seats, Hangers Hooks
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Use an upside down Command hook on the backside of a door to hang a wreath.