Sean Ragan made this rad Don’t-Leave-Home-Without-It Machine using littleBits:

Spectacles, phone, wallet, watch. Tablet, keys, pocket knife, camera. Multi-tool. USB cable and charger. Extra batteries. Outgoing mail. Coupons, tickets, medication, and makeup. Sunglasses. Contact lens case and solution. That video game you’ve been meaning to return. A book to read on the subway.

Nowadays we’ve got more stuff than ever, and it seems like we have to carry most of it around with us. We’re also more distracted than ever, our attention constantly jumping back and forth between real and virtual space. It’s an insidious combination that can lead to lots of wasted time and energy when we find ourselves at the pharmacy without the prescription, at the hotel without the phone charger, or at the airport without the passport.

Whatever it is you keep forgetting, this project can help. It combines a selection of parts from littleBits’ Premium Kit with a few common pieces of off-the-shelf hardware to create an automatic pick-me-up-and-take-me-with-you machine. Put it on a table by the door, put the stuff you want to remember inside, and turn it on. If you start to go out without pickings up your things, it sounds an alarm to remind you to grab them, and keeps ringing until you do.