Typically people use a keyboard shortcut to save, which makes it less painful.

For running your program, try typing

python yourprogram.py

from your console/terminal/whatever after having navigated (by typing "cd directoryname" and "dir"/"ls" repeatedly) to the directory where your program is. After having typed the execution command once, you can just push the up arrow on your keyword to restore that command on the command line. So under ideal conditions, executing your program should consist of four actions: pushing a keyboard shortcut to save, switching to a terminal window, pushing the up arrow key, and pushing enter.

Probably the instructions I just gave you will be hard to follow because they are awfully compressed and I don't know your platform. So feel free to tell me if you run into a problem. You may wish to make an explicit effort to learn the command line; I believe there is a Hard Way book about it.

Another option is to use the editor that comes shipped with Python, sometimes referred to as IDLE. Once you figure out where it is and start it running, go to the file menu and choose new document or something like that. Then press F5 at any time. It should prompt you to save and then run your program. (If I recall correctly.)

I'm sure there's something unclear here, so please respond if you get stuck.