Don't take so many in the first place
^^THIS^^
Try shooting some film, in particular large format 5x4 or 10x8 and you won't take more than one exposure at a time (unless you are very well off financially or the photo is extremely important**)
** This relates to a location that cannot possibly be revisited or the subject is so important it is imperative that a back up negative is available should an error occur during developing / PP
Normally though, one scene = 1 sheet of film
EDIT:
I might add that even with only one frame taken of a given scene, many of those negs don't become keepers.
Film is exposed, developed and the negative scanned.
If a defo keeper, it is printed either inkjet or wet printed.
If a dud, it goes straight in the bin.
If I'm undecided, I'll put the negative to one side for a couple of months then review it ( we often see the resulting photos differently after a period of time from actually taking them!)....If it pleases me more than originally then i'll try rework it into a print, otherwise it too goes in the bin.
I don't have many printed photos but those that i do have ( printed A3), please me and I am not ladened down with negatives, files, hard drives, back up discs etc, nor the frustration of what to keep!