Thanks for the suggestion, Julie! Having ingredient dividers is definitely on my list of things to do. One option currently available is to reference another recipe, as in
http://thelonelyegg.com/recipe/15 . For example, if I wanted to reference your brownies, I would put "1 batch [Recipe:232]" in an ingredient list. Of course, this doesn't always make sense, so I will look into doing subheadings as well when I get the chance.
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-Tomio