I'm putting in a powerline Internet adapter for my house (something like this). My mom said it has two circuit breakers, but she has no idea how the house is divided between them. Going across breakers causes too much interference and is bad for the connection, but sometimes the Internet works well and sometimes it doesn't so the signal here is noisy.
Is there an easy way to determine which outlets in my house are on the same breaker? Powerline aside I'm also just curious to find the answer.