If you dream of scrubbing floors, it means you have serious concerns about getting rid of dirt in your life. This dirt is a metaphor, which refers to the undesired mess that clings. If you have a problem in your waking life, you might reflect on its causes and assess how you could handle it.
The dream symbol of scrubbing means you are determined to remove the spots. Your unconscious self knows it is important to tackle the grime. It has triggered this dream, to bring to your attention the importance of this matter.