Hypo-clear has a tendency to degrade after a while. Personally, I went the "expensive" way and mixes working strength solution each time I print FB. I try to print a decent number of prints, but nevertheless I discard the used HCA after the session.
If you buy the liquid versions, it's not that inconvenient, and is only a minor expense for your processing. You don't need distilled water for HCA, unless your tap is really bad. Tap water is already is a better fixer removal agent than distilled water anyway, and using it won't deplete your distilled water stock for nothing.
Photo-flo I will use for more than one roll only within the same session. Whether I develop 10 rolls or 2 rolls, I will dunk them one by one in the 500mL of photo-flo I prepared and then throw it away after use because I don't care enough to keep yet another bottle for it in my cabinet. Again, this is such a low expense, that I prefer being overly safe.