I knew quite a lot of the tips but this one I didn't, it's the last one which is about resizing windows:
While I am developing with lots of windows open, I think this will be incredibly useful. So I thought I would share it in the Plugin SDK and Development forum (it may be more appropriate elsewhere?). I already use the Magnet App (for window positioning) but this is just another very useful string to the bow.When you drag your mouse from one side or corner of a window to resize it, you can hold the Option key to resize the dimensions of the window from its center point instead.