So what's a knitter/crocheter to do?
Well, I'll tell you one thing-- it's not a valid excuse to make something like this:
It looks like some ill-conceived rag rug... from a 1970s kitchen... that has been on the floor getting heavy use since the 1970s... and never once washed during that entire period. (I.e. probably not the sort of thing you want to wear as a coat.)
Please, my fellow scrap hoarders. There are better options available to us. Keep looking! Don't despair! Don't cave in and make a rag rug coat!