...It's missing your instore bag choice as the fundamental source of this entire problem...
(http://www.youtube.com/watch?v=nQMgfhE3Nzc&sns=em)
Just say no to a bag at least once a day. I do it almost every lunch at local food and/or convenience stores. And if you're popping out to the local Safeway / Whole Foods / Trader Joes or whatever, just grab a couple of reusable bags. Or get a cart (yes, this store is actually really funny). Minor hassle for me, in fact I've come to much prefer it (I feel guilty if I take the bag). Major impact if we all do the same.
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