DEVONthink and Emacs Completion
DEVONthink has the annoying habit of starting up if I try to complete a bit of text in Emacs on my Mac. By default DEVONthink is bound in the "Services" menu to Apple-Slash (Command-Slash). To fix this, open up "/Applications/DEVONthink Pro.app/Contents/Info.plist" in Emacs. Do a search for "NSKeyEquivalent" until you see an entry that looks like this: