Power User - The Best of Lifehacker

This week at Lifehacker: Build an auto-on pantry light with a Timex watch holder. Replace your iPod's hard drive. Make an RFID-blocking duct tape wallet. Finally, instantly inventory your gadget stash off-site for insurance purposes when the house blows up.

Power User - The Best of Lifehacker

Open the door, light goes on. Close the door, light goes off. The system works in the refrigerator, and it's pretty nice in a dark pantry or closet as well. DIYers, rig up your own auto-on pantry light with some Christmas rope lights, a reverse switch and a plastic Timex watch holder.

Power User - The Best of Lifehacker

iPod sad face? Save yourself 150 buckeroos. Buy yourself a new hard drive and crack that baby open, you bold take-things-aparter, you. Replace your fourth-gen pod's dead hard drive with a screwdriver, stick glue and a little elbow grease.

Power User - The Best of Lifehacker

That identity thief sidling up to your butt with a RFID-reading device? Foiled (literally) by your custom-made RFID-blocking duct tape wallet.

Power User - The Best of Lifehacker

Now that you're all grownup and responsible with actual homeowner's insurance, it's up to you to keep track of what gadgets you've got. Snap a few quick pics of serial and model numbers and upload to a photo-sharing site for instant personal off-site inventory.

Lifehacker's Power User column appears every Wednesday (most of the time) on Gizmodo.