What resourceful innovation did you resort to?

I have been thinking on this for awhile now and it came up again this morning when I was caught with frost on the windshield of my vehicle and no ice scraper immediately available to me. I sat there waiting for the defrost to do its job but soon grabbed a CD cover and effectively go the windshield cleaned off that way.

What makeshift solution have you resorted to anywhere around your domestic world? Could include recipe substitutes, etc.