I have often thought of what I would do if I were in your shoes.  The only other 2 things that I can think of is #1 post flyers for baby sitting or pet sitting anywhere you think people would see them and #2 go door to door with a bunch of your resumes.  Times are very different right now and just emailing or answering an ad will not do it............you may have an advantage with a "face to face" approach at a business.  Neither of these ideas can hurt......they will just take a little time and will only cost you your printer costs.  Good luck.   OH.........another thought..............get another room mate if you have the room.  That new roommate may not require a separate room, just a cot and a bathroom.  There may be more people in the same boat that you are in and may just need to ban together for awhile.  A flyer stating that may do the trick on getting another roomie.