When workers have to walk through occupied spaces, a Dirt Grabber TakMat keeps them from leaving a trail of debris in their wake. The 2-by-3-foot plastic mat has a sticky surface that pulls dirt off shoes and traps it. Each mat has 30 layers; when one gets dirty, you peel it off and throw it away. A box of two self-adhesive TakMats (60 sheets total) costs $58. A reusable (nonadhesive) base costs $44. Protective Products International, 800/789-6633, protectiveproducts.com.