Horizontal blinds provide the convenience of ensuring privacy from neighbors and preventing sunlight from seeping in. These window treatments are available in a variety of colors and materials such as wood, faux wood, aluminum or vinyl. After repeated use, the blinds may not work properly and might not lower. This problem is usually because of a stuck cord lock in the blind’s mechanism. It may not be time to throw out the blinds, however, because you might be able to fix them with a basic tool or no tools at all.