Line It Up

If your plastic shower curtain liner is too dirty to clean (it's just not worth it) but still good enough for something, take it down and save it for a paint drop cloth. Most liners are a good size, so they'll cover most of an averaged-size room or a large piece of furniture. Here are more perks: The plastic is heavy duty so it won't tear as it's dragged around, and paint won't leak through. And since many of these liners have a slight texture to them, you and your ladder are less likely to slide on them.