Rollie pollie’s – are these good or bad? Known more commonly as pill bugs, these little crustaceans are part of Nature’s recycling team. They generally hide under boards, rocks, flower pots, piles of grass clippings, flower-bed mulches and other decaying vegetation, where there’s plenty of moisture. No need to do anything if you find them outdoors. If they make it into your house, simply vacuum them up. Find out more about these unusual critters.