It has happened to me more than a hundred times. Often I forget where I have kept the keys. And this short term memory loss has no cure since it mostly occurs because we try to finish off things in a hurry. Here is some good news for such folks.
A pair of goggles that remembers what you have done. Wondering what a pair of goggles can do? Of course it can hold a camera that can record the daily activities. So next time if you want to search for missed keys just replay the recorded event to find it out. Even a head mounted video cam can do that. So what does this gadget hold special to make your day easy?

The spectacle comes with in built camera, display and a processing unit. The smart goggles’ compact video camera records everything the wearer is viewing. Just by naming the object you are searching for (say keys), it replays the last instant where it was in use or on record to be precise. So how it actually works?
The glasses are connected to a small, but smart computer processor worn on the back which can learn to recognise shapes extremely quickly. To adapt the system to your home is simple. Put on the glasses and wander around the house for an hour or so. Make sure that you view all the objects that you may later want to find in a hurry.
Each time the camera focuses an object - such as a set of keys, a mobile phone or a purse - the wearer says the name aloud. The name is then recorded and stored into the memory.
Once the names have been programmed in, the glasses will try to find the right name for any object they come across. The names appear in small type on the viewfinder.  If they are unable to recognise an object they make a guess and - if they get it wrong - learn from their mistakes.
In the future, if you are trying to find keys in a hurry, simply name the object. The glasses search its video memory and show its last known location of that item on the display. Isn’t that a cool concept?
I assume that it will receive lots of orders if they make it more fashionable. Also it will be a boon to those suffering from diseases like Alzheimer or weak memory.