do you guy organize your sets? do you keep them all together at all time? or do you have a unique way to keep your expansion recognizable for separation?

I had an Idea to use a ink stamp and put a number on the face of the card that corresponds to the expansion it belongs to (all cards will be sleeved). I believe I'm only going to get two expansions (CotDP and DH, maybe), and I really just play the game solo, so organizing will be pretty easy. But what about you guys and gals?

All the cards not from the base game already have expansion icons on them for identification. The only exception I believe is monster tokens.

I have all the expansions and fit them in a rolling banker box. All the cards are in plastic card boxes that were leftover from my MTG days. I can set up a game in about ten minutes, however it probably takes me a half hour to put it away if I am alone. However usually Emily helps.

Here it is mostly empty and most of the stuff that goes in it. There's plenty of room left for the Lurker in the Threshold and a couple more expansions. The boards sit neatly and almost perfectly to the side.

I'm really looking into ideas for a 'display case' so the game can be funcional for easy set/put away. I say a video on youtube that showed a nice travel/game display... here it is: www.youtube.com/watch

I'm thinking this would be perfect, but I know I'll need help with the proper dimensions.

I didn't know the cards for this game comes with expansion symbols, thanks Veet.