Organizing IO Cards

Hi everybody,

usually everybody shows his "eyecandy" parts of the sim. Now I was thinking of the backside:
I am just wondering how all of you guys organize you IO Cards. I have alomost completely wirded my 727 Flight Engineers Panel and it turns out that - expectedly - it eats up 1 OC Output card and one and a half master cards with a total of three input connector cards. Then there come overhead and MIP...Probably I will keep the cards at two different sites - one for FE Panel, one for the rest of the aircraft.
I was thinking of using screws to fix the cards to plywood, but probably some of you have much more brilliant ideas. I could imagine something like a little cabinet with drawers and the individual cards fixed to different drawers...?

Any ideas or even better pics are welcome.

Regards,
Florian