get last values after restart

Hi all i wonder is there a proper way to continue the last thing my expert done after restart the trading program ! because when i attach the expert and then the program is closed then back again the expert start over again from the beginning !
might use a file to save to and then recall ! i am not sure any ideas !

Best way is to have the EA save what it's doing in a file..preferably every time the start function ends.

i am not familiar with this way would you write down a simple code about that !
what about using Static !