I'm OCD about this.
Box 1 - Dragon Type (Arranged from highest to lowest level)
Box 2 - Dark Type (Arranged from highest to lowest level)
Box 3 - Fighting Type (Arranged from highest to lowest level)
Box 4 - Fire Type (Arranged from highest to lowest level)
Box 5 - Steel Type (Arranged from highest to lowest level)
Box 6 - Poison Type (Arranged from highest to lowest level)
Box 7 - Flying Type (Arranged from highest to lowest level)
Box 8 - Water Type (Arranged from highest to lowest level)
Box 9 - Electric Type (Arranged from highest to lowest level)
Box 10 - Ground Type (Arranged from highest to lowest level)
Box 11 - Ghost Type (Arranged from highest to lowest level)
Box 12 - Rock Type (Arranged from highest to lowest level)
Box 13 - Ice Type (Arranged from highest to lowest level)
Box 14 - Normal Type (Arranged from highest to lowest level)
Box 15 - Grass Type (Arranged from highest to lowest level)
Box 16 - Bug Type (Arranged from highest to lowest level)
Box 17 - Psychic Type (Arranged from highest to lowest level)
Box 18 - Legendaries (Arranged from highest to lowest level)
Box 19 - Dittos
Box 20 - Shinies (Arranged from highest to lowest level)
Box 21 - Anything that needs a home (Arranged from highest to lowest level, and type)
If anything gets out of whack, I have to fix it right then and there, or it will drive me insane. If I run out of room (Like in LG when I only had 14 boxes and over 100 tyranitars (it was a weird night.....)......), I send a lot of them over to any other games that have room. My Dragon, Dark, Fighting, and Legendaries box in Black are full..... Box 21 is close to being full, too. Most of them cant be transferred, either. I don't have X, Y, B2, or W2..... Yeah..... uh oh.