One concept that will help you all immensely with Option Greeks is to understand the San Jose Options' Vega Multiplier concept. We posted a free video on our website that you can watch to understand this concept and develop your own table.
By using a Vega Multiplier you can calculate a more accurate reading on your Vega position, a truer reading than you'll get from just using the Vega that your software displays to you.
Have fun with it and good luck trading!