Turn your Google Spreadsheets into JSON without doing anything!
A while ago, I did a Flash project that was fairly heavily text-oriented. To help keep track of all the text, all the strings were given labels and placed in a JSON, spanning about 1500 lines and calling almost 4000 different references all throughout the code.
Later on down the road, the client contacted us and told me that they wanted the language of the strings in English and in French. Alright, no problem, just have to manually update these 4000 references and run checks to see what language is being used … no, ain’t happening like that.