| Credit: Michele Gastl

Use: Plain water.

Tools: A microfiber cloth.

Tips: For extremely dirty mirrors, make a solution of one part vinegar to one part warm water and use a squeegee. Keep water or the vinegar solution away from the edge of a mirror; moisture can seep behind the glass and cause damage.

Tough stains: Rub tough streaks with crumpled newspaper and the vinegar solution.