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I wipe the sides of the blade with a towel and then strop it on linen and then leather for a few laps and put it back in my wooden (cigar) box which is keep in another (not bathroom) room.
That's it and I've had no problem doing it that way for years.
There's no reason not to get it if you are thinking of not getting a 1k because of price. I also disagree with the characterization of it being borderline between acceptable and a doorstop.
Some people complain that it is too soft or too slow but most people are only going to use it on a few...
You can get a King 1k waterstone for about $25 so there's no reason not to get that. I wouldn't use the DMT's for anything other than flattening the other hones. When you can afford it, a 12k Naniwa is nice to have and you already have the chrome oxide paddle along with the 3k and 8k.