I discovered these handy enclosed spaces called "pockets"
. Things in pockets tend to stay in place longer than things not in pockets.
I discovered the hard way that pockets work better if they are sealed shut when you fall down in fast water, or things float out of them.
I also discovered that there is a law of nature that says the thing you are searching for will not be located in the first pocket in which you seek it, EVEN IF IT IS THE ONLY POCKET YOU EVER PUT IT IN, but the umpteenth.
By the way, I have ten or twelve of your bottles of floatant here somewhere. I keep finding them along the river.