Submitted by AdmiralBofa t3_z8xx8n in LifeProTips
The electrical panel on an American house will have numbers for each breaker. When you finally find the right one to switch off, write it in Sharpie inside the outlet cover or switch plate where you were working. If you ever take that cover off again, you'll know exactly which breaker to turn off.
PaladinRaphael t1_iydzmd6 wrote
Speaking as a homeowner with old, jacked-up electrical, this is a solid idea.
Even renters should do this.