what do you do when your line of credit at the bank is due?

I've seen many businesses look for alternative answers to handle their working capital needs.  Several business owners are turning to asset based lending or factoring as an alternative source for bank financing.  Some banks are having liquidity or solvency issues and aren't renewing working capital lines.  Some businesses have had losses due to the changes in their business and the economy.  This kind of financing does provide an advance rate of between 75% to 85% of accounts receivable less than 90 days.  However, the cost of capital can be as high as 25-30% on an annualized basis.  For many businesses, this is higher than their gross margin which begs the question why sell the product if all of your margin goes to financing cost?  Asset based lending or factoring may be the only way to go.  But, are there any other viable alternatives to the business owner who needs working capital financing?