If you use fabric softener, you will have to do an additional step when cleaning your lint screen. Fabric softener contains certain chemicals that can actually clog the lint screen at a microscopic level. To test this, remove your lint screen and the lint on it, then run the screen under cold water briefly. Turn off the water and see if the water flows through the screen, or just puddles on top. If it puddles on top, you will have to clean the lint screen with warm water and dish soap. Once clean, test again and you will see that the water flows through. Perform this test periodically and clean as needed.