My concern is that the nearby circuits are:
Kitchen (already at capacity when I turn the toaster oven on).
Say you used the toaster oven circuit with the extension cord fo the washer. Youre telling us that you have to run the toster oven AT THE SAME time you would be washing clothes. Its not like you would have to have the extension plugged in 24 hrs a day for the next 2 months. Just plug it in when you wash clothes.