Find a Fuse Fast
If your house is like mine was when I bought it, none of the breakers in the electrical panel are clearly marked, so every time you have to find our which breaker to shut off to do electrical work, it is a sometimes long trial-and-error process.
My solution? Once I do find the right breaker for a room, circuit or appliance, I write the breaker number on the back of corresponding switch plate cover or outlet cover. Now when I want to work on a circuit, all I have to do is look behind a switch or outlet cover to be confident that I know which breaker to turn off, saving a lot of steps and time.