As one of its daily deals, Home Depot offers the Pass & Seymour WattStopper Residential Vacancy Sensor Lightswitch in White, model no. RS100BAWCS, for $9.99. Add five to cart for $49.95 and bag free shipping. That's tied with our September mention and $22 under the lowest total price we could find for five similar switches elsewhere. This switch automatically turns off the light if it senses no motion for 30 minutes. Deal ends today.

Of note, this switch is compatible with incandescent lighting only.