How do you organize your LPs?


So I've accumulated upwards of 3,000 records and storage is getting out of hand. I currently have a built-in that holds about 150 of my most listened to. I have 12 Sleeve City boxes that hold 60 each. The rest (a majority) are in other boxes, cabinets, book shelves, etc.
I am planning some cabinetry that will hold ALL my records with room for additional. My question is how do you arrange them? Alphabetical? Genre or some hybrid. I can't continue to look through 500 records to find the one I am looking for.
zenblaster
Don't, just file them away as purchased, with an collection number I assign. I do have a data base, organized initially by collection number but can be sorted any which way.
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.