This idea is not in the realm of high-technology but it's affordable. It's not foolproof either but it's an idea:
Buy a portable timer at Walmart, the kind you would use in your kitchen. If you have an idea how long it will take to get where you're going, you set it for about 10 minutes less. When the timer goes off, you reset it again.
Or someone could redesign such a timer that would be smaller and could clip onto your belt. So if you walk away from the car and the timer goes off two or three minutes later, you can still get back to the car in time.
|