Good for you! I personally find it difficult to do it without a mouse.
And even with mouse it's error prone, you might accidentally move your mouse during clicking on something, and d&d something somewhere that you don't really want to (classic example is moving folder into another folder in the file open dialog).
And even with mouse it's error prone, you might accidentally move your mouse during clicking on something, and d&d something somewhere that you don't really want to (classic example is moving folder into another folder in the file open dialog).