You are connecting your extension cords this way, right?

Public Service Message: Whether it’s Christmas Lights or power tools, any time you’re connecting two power cords together that have a chance of being pulled on, they should be connected thusly:

Unless, of course, you want to get all fancy and waterproof with your connections, but then you run the risk of being labeled a power cord snob.

Bonus picture: Definitely not a power cord snob: