God damn PDFs where you can't select text! I'm working on a paper (on alien abduction as a western culturally-bound syndrome) and so far like half the damn journal articles I have on the subject are not selectable! Ahhghah! I like taking out sentences/paragraphs and putting those in another document as important quotes, and then organizing them thematically to help come up with structures of my papers so I already have my supporting evidence, but those bastards won't let me copy-paste! die die die die die!