Best way to categorize your Vinyl collection


I'm sure this was probably posted before but, whats the consensus?? My albums are in alphabetical order (according to artist) and I find it to be a PAIN to try to find any thing! My eye sight is getting worse by the day!!
I'm thinking maybe to do it by "era" or "type of music" be it 70's rock, psychedelic, Southern rock, Folk, Jazz, female vocalist ect.... Perhaps a category for best sounding recording...?? What works best for you??
tjnif
Mine are a jumbled lot. I only have around a thousand, so I can guess fairly close as to the location. But during the search I'll find many I have overlooked and they will get playtime. Had they been organised, I feel they would still be in that no-look zone and forgotten. In the past couple of months I have picked up around 150-160 more, and they will be placed on the shelf as I got them, in no order.
I have about 6,000 LPs.
I have three main groupings:
Classical 2,000, Jazz 1,800, Rock 2,200.
In Classical I have all the operas on the top shelf in composer order. (6 shelves high up). The Classical has the most complicated sort: By Composer: then sonata, duo, trio etc up to symphony, with choral last. Withing each the sequence is in ascending order by oldest first, then if I have say 8 Beethoven's Sixth Symphony: by the last name of the conductor. or main artist.
In Rock I have all the 'Jazz' singers, and odd old stuff on the bottom shelf. The rest is in Artist/Group alpha order, then each group I 'try' to keep then in oldest first etc. (am don't like much 'Jazz' singing, so I keep those over in the 'rock/pop' section, along with New Age.
Jazz is all alpha by primary artist or group, then by date created, with oldest first.
As for the 'other' way to look at the question: I try to dump stuff that is less than top stuff, either as to quality of the vinyl, or the performance.
Having constantly weeded the stuff I can say the vast majority of my stuff is VG++ to NM and all highly rated by critics.
The vast majority of my LPs were purchased used, locally.
Years ago I gave up on using some alpha filing scheme and went to a numerical approach and a computerized data base (collectorz.com} that is used with a bar scanner. Still cataloging but hopefully will finish late next year. I'm often surprised on the duplicates in the collection. Works well for CD's but still have not found an easy way to do the the vinyl.