45's go in alphabetical order by first names (which grinds most other collectors ) apart from Deep Soul and Philly related which are separate from these and are in blue and green cardboard sleeves
Lp's in alphabetical order - 60's and Jazz separate
12"s in genre/year ie House, 70's, 80's, 90's, Y2K (not alphabetical)
It all sounds very organised, until I want a Philly deep soul 45 and don't know which colour it's in!