Dektol
There was a day when I would do this on a regular basis for a quick single reproduction print.
Keep a separate bottle for Dektol labeled "working" fill it right to the cap.
Kodak rates the shelf life of a full stopper bottle of working (diluted) solution at 2 months if I recall correctly, I would not allow it to age half of that for serious prints.
Never pour working (diluted or used straight) solution back in to fresh soup. Keep a log sheet on the wall with date mixed, date diluted, number of sheets processed.
Then throw it away at half the rating,
unless you are just printing "dirty" test prints made just to view cropping.