Back-to-school is an exciting time of year for families, but it also means new exposures to germs.

From school desks found to have 400 times more bacteria than the average toilet, to personal items like backpacks and cellphones, germs are everywhere. Taking steps to reduce exposure can make for a healthier school year ahead.

Remember to wash hands and your items frequently — did you know that backpacks have 10,000 germs per square inch? Then, use shelf liner in areas of your home where school items are stored for extra protection. Try using Easy Liner brand shelf liner by Duck brand with Clorox antimicrobial protection, which protects the liner from the growth of mold and mildew. Plus, the liners can be tossed in the wash for easy cleaning.

 Parents can help keep classrooms cleaner by providing teachers with disinfecting wipes and shelf liner to protect desks, drawers and shelves.