warthog
I don't know what you "call it," but here's a cool one to try. I got it from beyond-within.com. When you are having trouble locating an object, stop and clear your mind. This is easier if you've been meditating and are good at letting all those yappy little thoughts quiet and go away. Remain like that for as long as you need to (could be a few seconds, it's up to you). Then send out a psychic beacon of energy to the object you're thinking of. Think of sonar or radar.
You should then get some sense of where the object is. It might be a picture of the location. It might be an urge to walk in a certain direction, and then you end up facing the object you lost.
The first time it worked, I missed it. I was looking for my keys. I was certain that I "knew" a range of places they might be and might not be. When I sent out my beacon, I saw an image of keys in a pocket of some dark green shorts. I said "bah!" and tossed away that image, because my thinking brain said "there's no way it could be in a pocket of any of my clothes." I went back to looking in the same places I hadn't found it before. Suddenly, my husband, who was helping me look, found them in his pocket - the shorts he was wearing were dark green, and I hadn't even noticed. Turns out he accidentally scooped them up when he picked up his wallet, right next to the keys.
The most amazing aspect about that instance is, that couldn't have been memory. I never saw my husband pick them up or heard him pick them up. I wasn't in the room with him when he did that. I had the right memory - the top of the bar is where they were, when he picked them up. The strange part is how it took him so long to find them while helping me, when they were in his own pocket :)
So it WORKED, and it's worked ever since for different objects. I've only done it 5 times, though. It gets easier to recognize which thought in your brain is that signal and which is the noise, the more you do it.
The only downside is, the information you get may not be what you're expecting. You may get a frustratingly narrow image of where it is (such as in someone's pocket - the inside view!). In that case, I'd just say try again, if you can't find yourself a direction to amble in.