How do you organize your LPs?

I may have several groups of vinyl:

1. Disposal group is usually for worn records that are going to donation facility within close time of next year:-)
2. For sale(The largest group) that is usually sorted by genres(group of jazz, rock, classical and others)
3. In-out collection group consists of records that I'm listening to and sell at the same time sorted by band name. Band member's solo albums may be fit onto the band name as well such as John Paul Johnes or Rober Plant records can be found in Led Zeppelin pile.
4. In collection is sorted similar to In-out collection with the difference that it's not currently for sale.

Overall have near 10,000 records +-

I have roughly half of your collection...and at times it seemed unmanagable...i tried the alphabetical route but gave up...I simply fill them by decade...primarily 60s,70s,80s...not perfect...and for those purists that like genre specific divisions...probably not optimal...but it works well for classic rock, punk, new wave, post-punk,etc...down the road you could organize by artist in these decade increments...just a t hought....

Since I only have Classical and down to 500 from 3k, I just sort them by nationality of composer and by oldest in case of Germany.

By earliest memory

My type of music, I section them. In each section I then have the more favored LP's first. Keeping the same artists together. Not having nearly as many LP's as some this method works well for myself.