Learn about securely fastening a chandelier so it doesn't fall, troubleshooting a flickering fluorescent light, recycling fluorescent tubes, whether to remove or insulate over sawdust attic insulation and knob-and-tube wiring in a 100-year-old home, replacing a defective breaker in a house that has some aluminum wiring, and the difficulty of hard wiring. These real questions and real answers may help you address your own interior electrical situations.