Smartphone Inspection Camera
For long runs, tape the cable to a stick to feed and aim the camera head. The unit comes with a cloth storage bag and three attachments: a 90-degree mirror, a hook and a magnetic tip. The video quality is good enough to get the job done; just don’t expect 1080 resolution for this price. You can find the camera for about $33 at
Electrical Tools with Onboard Voltage Tester
Tool manufacturer Gardner Bender solves the problem of lost testers by incorporating a tester right into the handles of its wire stripper and screwdriver—tools you’re bound to have on hand whenever you’re doing electrical work. Simply press the button and move the tool handle near the wires to test before touching. Or, slide the tester off the tool handle to use it as a freestanding unit.
Find the at home centers and online.