Helpful Hint

I've had these annoying drip marks on window of my oven door for about a year.  The cleaning cycle of the oven didn't take care of it nor did wiping the window.  The drip was between two panes of glass.  I gave up, UNTIL I saw the solution in Real Simple magazine.

Take the oven door off the hinges.  You will see an opening at the bottom of the door. 

You can see in this photo that I slid a spatula through the opening and between the panes of glass.

Cover a spatula with a damp cloth and insert between the glass panes and rub until marks disappear.  You can see that I have removed part of the marks.

The door is back on the hinges and the window is free of the greasy streaks.  I'm happy.