Now if you’ve run out of time before you’ve been able to finish your painting job, no need to clean your roller, simply place it inside a plastic bag like this one, give it a couple of twists, and secure it with a tie. Now the next day, you can just take this out and continue on with your project. If it’s going to be more than a day, put this in a freezer. Then when you’re ready to begin, take it out, thaw it out, and go back to work.