I don't have the space for all of mine, so the large ones stay in a wine cooler stainless pot, and the smaller ones in the box.
I pick it up as it were full to the brim of water, it's taking them out which is the bother, which I also do as carefully as a jenga or buckaroo game.
The double walled pot amplifies the sound, so you likely would not be pleased.
I admit most of them are cheap ones, nearly have a second of all the most used, but do have some old fresh ones too, which are course and sharp.
The round files I find are the most replaced ones, I've only noticed them dulling, well maybe some half rounds also.
Maybe that's because I likely buy middle of the road ones for a fiver when I need one, and get some more back ups when I see cheap ones.
Not done that in a while, as there is no good pound shops locally.
I'm glad to take the chance of not having to be so annoyed with one or two files,
say like a regular round file making slots, the work can be done a good bit faster, especially if in an awkward spot.
Whether it's a myth "busted" or not, I guess it could well be that it was to discourage the apprentice from using a shorter stroke of the file.
Keen to see more studies on this.
Still gonna play by the rules with one or two of the fancy ones I've collected, they don't get used for much.
Tom