Apply painter's tape in a grid pattern across the mirror surface, then use a putty knife to gently pry it off the wall while supporting the weight. For glued mirrors, use a heat gun to soften the adhesive first.

Mix distilled water + white vinegar (1:1), spray on a microfiber cloth (not directly on the mirror), and wipe in circular motions.

Swap outdated fixtures for modern sconces, add LED strip lights under vanities, or use battery-operated stick-on lights in dark corners.