Yes, you need a paper shredder. We tested and found the best one | CNN Underscored

Bonsaii Paper Shredder, 5-6 Sheet Crosscut Shredder for Home Use, 3.4 Gals Wastebasket

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Ativa HD1600 16 Sheet Cross Cut Shredder - Office Depot

Heavy-Duty Paper Shredder for Commercial Shredding

Portable Auto Paper Shredder - Mini USB Document Cutter, Strip Cutting Machine for Office Stationery, Black

Fellowes LX220 20-Sheet Micro-Cut Shredder, Black (5015401)