To see or dream that you are wearing boots refers to the power in your movement and the boldness of your position. You are taking a firm stance. The dream may also be a metaphor that you are getting the boot. Are you getting kicked out somewhere?
If you dream that your boots are dirty, then it points to your stamina, willpower, hard work and strong work ethic. To dream about cleaning your boots means that you are moving ahead by your own means.