In TextMate 1, there was an option to save on lost focus. That is, when you'd switch to another application, your TextMate documents would save. How can I recreate this behaviour in TextMate 2?
There is a plugin for TextMate 2 that allow you to save on focus lost : Save-On-Focus-Lost, just install the plugin and you will have the feature back even in TexMate 2.