Anyone have any suggestions on a mailbox "mail is here!" notifier? Something that just flips on a nightlight to notify you the mailman(woman) just put something in the mailbox.

I tried to put a Hawkeye II in the back of the mailbox, but the signal wouldn't get to the house. Is it because of the metal mailbox? The house is only about 40 feet from the mailbox.

Smarthome sells something specifically for that, but it's $70. A little too expensive for that simple task.

Maybe i'm being a little lazy be not taking the extra 100 steps out to the mailbox, but this is what home automation is all about! :)