Help! Staffing Crisis

We are having quite a nursing shortage on our 42 bed medical unit. With the "busy seaon" just around the corner...we are very concerned about what to do with our staffing shortage. We use a team approach with RN's, an LPN and CNA's. We have discussed working 12 hour shifts which is not ver popular, rotating shifts, closing beds, and advertised in all the major newspapers. Our staff is stretched to their max. We have all be working about 20 hours over what were are hired for. I'm afraid our patients are feeling the extra stress. (Not to mention the staffs families, when they get to see them.) Please throw out any suggestions you have for us--we are in a staffing crisis and are in need of advice. Thanks so much!