There should be no reason (mechanically or sonically) to store them one way or the other. Well, One reason..... You can read them more easily if they are horizontal.
The highest density, most convenient, inobtrusive storage is in a drawer, vertically, in rows front to back so you can..... yes, you guessed it!!! Read the Lable.
The highest density, most convenient, inobtrusive storage is in a drawer, vertically, in rows front to back so you can..... yes, you guessed it!!! Read the Lable.