Woodlice love hiding under things. Cardboard boxes, stacks of newspapers, plant pots, yoga mats you haven’t rolled out in three years. They are shy little creeps. Remove their hiding spots, and they’ll have nowhere to go. Vacuum and sweep regularly, especially along baseboards and under furniture.
Pro tip: if you have houseplants, check the soil. Woodlice sometimes hitch a ride in potting mix. Try letting the top inch of soil dry out completely between waterings. Your plant will survive. The woodlice? Not so much.