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
I finally [after 5 moves had totally mixed them] got mine in order. Piano music in one section, symphonies in another, organ, rock, folk. jazz etc. I can find things now but I don't know if anyone else could. These are my LPs, my CDs are still in a mess but I have many fewer of them. [2-300 vs 3000]
Becides categorizing I have separate shelves for Frank Zappa, German progressive rock, David Sylvian/Japan and band members solo albums... Within Jazz there's a large collection of ECM and its sublabels suchas Watt.
anyone know where I can get some album "tabs" to put between the categories or alphabatize as they do in the record stores?

I have been trying to find these for a long time.
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.