I like to purchase in bulk from my local restaurant supply store take out food containers. (iheartnaptime.net)
As part of a small family co-op, we buy three kinds of flour, plus whole oats and brown sugar through a wholesale restaurant supply company. (thefrugalgirl.com)
If you're looking to bag a bargain, you'll also find restaurant supply shops where you can get your hands on all sorts of foodie treats for the lowest prices available here. (holiday-weather.com)