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The price motion detectors has gradually decreased over time to the point where they're mere pennies.

There's a great book about this called "Cents and Sensibility"

Signs you drink too much coffee

- You answer the door before people knock.

- Juan Valdez named his donkey after you.

- You ski uphill.

- You grind your coffee beans in your mouth.

- You haven't blinked since the last lunar eclipse.

- You lick your coffeepot clean.

- You're the employee of ...

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