Okay, once again, after doing my own research first, I wanted to get some current opinions on a few things. First, regarding powder storage - cool, dry and in the original container seems to be the general consensus. Avoid high temps and humidity. Don't store in sealed containers seems to be a common warning too. But I'd like to toss the question out again - what are your best recommendations for powder storage - particularly if it's already open? Is a garage cabinet a good idea? I've read the safe can be a bad idea as the powder can give off corrosive gases (?) that can attack the steel on the guns in the safe. Thoughts? Second, related to this - if you were to buy powder from someone, would you even consider buying an open container? I notice some folks specifically note 'sealed' or 'unopened' on their powder ads, some do not. I've seen some for partial containers. Would you ever consider buying an open container? Considering that you can't be certain how the powder was stored? Other than the smell (I've heard bad powder has a certain smell), would there really be any way to know if the powder was in any way compromised? Or is it best to just never buy open powder? Thanks again in advance for the help!