I have gotten jobs cold calling. And, in the past, by walking into a place. Lately, the internet seems the way (unless I call an agency that knows me)--check company web sites also, and branch out a bit from what you are looking for; many websites have a "careers" or "jobs" section you can check periodically for openings.
If you could afford it for a period of, say, 6mo, renting out a spot (depending on what you do) might not be a bad idea at all, gives you exposure, chance to meet people, get to know people....build a reputation.
It is something you just have to keep at. Taking any job right now might be okay for a bit; you don't have to stay anywhere, can continue to look...