Roly Poly (pill) bugs

I hate these things! Somehow they manage to get into the house in the summer and then I just find them everywhere... well mostly where there is linoleum like in the kitchen and bathrooms. Most of them I find are already dead, but there are still those I find roaming around. I suck them all up with the vacuum, but that is a daily annoyance. I wish I knew how to keep them from coming in the house!