Do you take care of parts that you are not currently in your PC?

I keep graphic cards, processors and other parts I most probably re-use in the anti-static plastic, but that's all. And I never find time to re-sell old stuff, so that's only for emergencies or friends/family.

I wouldn't like to buy components that have been visibly exposed to static electricity sources. At the same time, I don't have a grounded wrist strap for parts-handling to reduce the chance of a static discharge as much as possible, nor do I own an air compressor or disposable "duster" cans to clean things the safe way (have to use my vacuum). I do use ESD bags for storage, handling, and to prevent contact with potentially-charged surfaces.

I usually save most boxes stuff come in (including the anti-static bags etc) and I put the components back in them once I don't use them anymore.
I don't personally have a problem buying stuff that somebody takes pictures off while they lay on the floor etc, as long as there's an understanding that I can return those products if there are any immediate problems with them.

Thanks for the gib :P

I normally put the old piece of hardware in the bag and box of the new one that's going to replace it and then put said box somewhere.
Right now I know that I have a source, graphics card, some ram, multiple cables, a box full of modems and "modem related stuff" and a couple hard drives laying around the house; but not a clue of where exactly. I also have have multiple old cellphones all over the place, heck, I just opened one of the drawers in this desk and found one.

I dont really have any PC parts outside the PC . :|

If I plan to sell or give away those parts I pack them carefully, usually in antistatic bag of the new part. If those parts are just waiting to go to the scrapyard, then I just keep them somewhere with all the other scrap.