Include own Package
I have a very basic question. How can I include my own packages, I.e packages that I wrote myself, into a sage notebook. I am using the notebook environment. So far I have only used Mathematica where I can just load a file filename.m into any notebook.
What is the path were I have to put my own package and what is the format in which I have to save my package (.sws, .sage, py...)? What is the command I have to use to include the file? An example would be very helpful. Again I would like to do everything in the notebook environment.
Thanks for your help.