I've been considering this very question myself. I have plenty of room to stack wood... in fact, I purchased a rick of pecan last spring for $70 (delivered and stacked), which I thought would be a good deal. Only problem is that the carpenter bees attacked it last summer and most of it is now infested with bee larve. The last time I split some the ground was covered with yellow larve about 1" long. Nasty, and I don't want to smoke with it, so I've been using it as regular ol firewood out back in our campfire pit. I intend to burn it all before this spring when those nasty bees decide to come out.
Anyway... there is a ton of wood to be had around here ever since the ice storm a few weeks ago (got a pecan and two cherry trees on my own property that need to be cut up), so acquiring the wood isn't a problem, but I will have to devise a method of storage so I can actually use it once it's properly seasoned.
Maybe some fine mesh netting over the pile this summer? I know I don't want to spray or treat it with anything. Any ideas?