Cleanup in Aisle One! Guess what's lurking at the grocery store? Germs! A recent study found the handle and seat of your grocery cart could harbor a million bacteria. Michele Samuels suspected it wasn't the cleanest area to put children, so when she gets a grocery cart, she does a quick sanitation investigation. "I'll find candy wrappers or spilled sodas or pieces of fruit or vegetables," she described. With a young son, the thought of a cart covered in germs really "bugs" her. "I really think about e. coli. I think about salmonella," she admitted. The Centers for Disease Control said riding in shopping carts is risky for kids, especially infants. Foodborne bacteria from meat and poultry makes millions of people sick every year, and germ expert Chuck Gerba said that's not even the worst part. The microbiologist conducted a recent study in which he found big problems on grocery carts. "Overall, slightly more than 60 to 70 percent of the carts had fecal bacteria on them, and usually hundreds of thousands of bacteria on the average shopping cart," he told us. The buggies had more bacteria than public phones and restrooms! "Probably because of the large number of people using it, the handling of raw food products. You're probably putting your broccoli right where some kid's bottom was," he said. Now, supermarkets are taking action. Some have installed cart sanitizing systems. "PureCart" is one of those systems. Jim Kratowicz, the president of PureCart, told us it's a "push through" cleaning machine. "Every time a cart is collected, the intent is that it goes through our system and a fine mist is applied to the cart," he demonstrated. The company's research shows it kills 99.9 percent of bacteria including salmonella, staph and listeria. Kratowicz says it meets strict government standards for its claims. "The base solution that's used is EPA/FDA approved. It is safe for human and food contact," Kratowicz said. Other grocers choose to provide disposable sanitary wipes for customers. Michele swipes the wipes whenever they're available. "It makes me feel like at least on the cart, when I'm touching the cart, or my son is holding on to the cart, that it's at least cleaned off some of the germs," she said. One popular brand: The Nice-Pak SaniCart wipe. It promises to kill nearly 100 percent of bacteria and is also EPA registered. Matt Schiering, the owner of Nice-Pak, said the wipes are in more than a thousand grocery stores. "We provide stands, which contain hundreds of these wipes in several canisters," he explained. What if the store doesn't provide the opportunity to clean your cart? Dr. Gerba says there are other ways. Arm yourself with your own pack of wipes, or bring an alcohol gel sanitizer with you. As soon as you can get to a sink, wash your hands. Michele adds extra protection by placing her food directly into fabric shopping bags, which she can wash. "I try to be careful and cautious about the cleanliness of my food without being manic about it," she said. If your grocer does not provide a way to clean your cart, experts recommend you ask them to!