Recessed lights, mail slots & wall A/C units may add convenience & comfort to a home, but they also add the potential for air leaks. Caulk any gaps around mail slots, & seal around leaky light fixtures. If the insulation above a recessed light seems dirty, it's probably allowing air to escape. Remove window AC units before winter. SKILL LEVEL: It depends Novices can caulk gaps and remove window units, but only a professional should seal around recessed lighting due to potential fire hazards.
Moving this from home decor to the "to-do" board. I think I could mount a mirror to a piece of plywood that was larger by 6-8 inches on all sides, and make separate pieces of upholstered framing, and attach them from the back. I have a pretty big plain mirror to start with. Any thoughts/suggestions?