The item you are working with drops to the floor. You know you're in trouble when you don't hear the bounce, so you don't know where to look. It doesn't matter; it's not there anyway.
 

1. First thing you need to do is look at your feet and make sure it's not under the wheels of your desk chair as you will immediately roll over it and spoil it or step on it.
   
2.  get the flashlight to do the floor search. Flashlight has dead battery. Go find fresh battery or second flashlight. Insert fresh battery and return to the scene of the crime.
3.  now what was it I was looking for? Get on floor on your hands and knees, using flashlight on the floor shrine the light horizontally across the surface of the floor and scan the area. Hopefully the item in question will cast a shadow or a glint in the light. Look at all those dust bunnies.  "Oh my" I see something I was looking for last week LOL.
4. Search behind you and the opposite area that you think it never could be in because that's probably where it's at.
5. Keep searching with some select choice four-letter words. It doesn't help,  but somehow makes you feel better, and alerts those within hearing range that this is not the time for cute or "helpful" comments.
6. Search more then give up. Go back to your bench and sit down. Hopefully you'll see the missing item right on your bench pin in front of you. Or maybe not.
7. If it really is an item you can't continue without, then go get the broom and the dustpan and carefully sweep all areas of the shop starting with under the bench.                               Collect all this in the dustpan then go through the dustpan with your fingers and a pair of tweezers, looking with your optivisor on and pick out all the good stuff that you find there. Maybe your piece will be in there, but it probably won't.  But this has several benefits: a)you'll find pieces that you didn't know you'd lost

b) you'll find things to recycle and c) you'll have a clean area under your bench for a few days.

1. Go have lunch or go to the Post Office. Sometimes it takes a bit of time for the wrinkle in the parallel universe to flatten out and return your item.
2. Still missing? Clean your bench top and catch tray. If you don't find it at least that will be tidy.
3. If still missing move on to plan B or make a new one. That way you'll be sure to find it!
4.  BTW.........i never did find my lost item.   LOL

Many of my students have been using an air/ acetylene torch and now want to have a torch that has the extra heat that oxygen brings, like the Smith "little Torch".

A lot jewelers use the "little Torch" with propane and oxygen, which is nice, and clean and moderately hot, but if you already have the Acetylene tank and regulator, you are halfway there....just add a tank of oxygen and its own regulator,  and add the "little Torch" designed  for acetylene. 
But here is the cool thing.....you don't have to give up your original air acetylene torch that you are comfortable with and already paid for!!! Add a "Y" splitter to that acetylene tank for about $35 and hook back on your original torch.  Yea!
​
 Now why would you want 2 torches? Well, your ambient air/ acetylene torch is good for many operations, like annealing, or soldering large cuffs or belt buckles, but is limited in temperature when using a small tip.  It's about the opposite of the "little Torch", which is small and hot, but not as ideal for that annealing  job or any situation where you might want larger overall heat rather than the hot localized heat of the "little Torch".

The "little Torch" used with acetylene instead of propane is very hot and can be a bit sooty if you are slow to add the oxygen when lighting it. There is a bit of a learning curve, as with most new procedures, but my students use them in my classes and many have asked me for info to purchase one for their home studio.
Here is what you'll need: an Oxygen regulator something like this:   
or this from Eurotool about the same price:      http://eurotool.com/products/SINGLE_STAGE_OXYGEN_REGULATOR-4555-98.html  








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add  an oxygen tank ..... usually best purchased locally from gas supplier or  buy used

And this "Y" Splitter: From Eurotool  http://eurotool.com/products/Y_CONNECTOR_FOR_FUEL_GAS_B_CONNECTIONS-4542-98.html

Now the "little Torch"Rio Grande : https://www.riogrande.com/Product/Basic-Smith-Little-Torch-All-Fuels-System-with-Five-​

and Last Photo shows the whole set up (ignore the extra little acetylene tank I just got to make traveling easier, yea!)

I hope this gives you the information you need to add oxygen to your torch set up. Feel free to ask for clairification or if you need equipment from Eurotool you can order it through me. ( Eurotool does not sell the "Smith" brand of Little torch) I have gotten decent prices and service from "CyberWeld" on line. They carry the Smith line, as does Rio Grande and Otto Frei. I suggest shopping around to compare product prices.
​  Happy Soldering!!!