I've been asking a lot of questions lately and I thought that I might make a little contribution to the community with an issue that mos of us have been dealing with.
I'm attaching a .txt file with a Master Calendar that I've been working on. There are thing taken from here and from there so it isn't 100% of my own.
Besides I have to thanks all of the people that have helped me here in the Community.
You can load this calendar using an "Include" function like this:
I hope this could be useful!
Thank you again!