Better use those gift cards while you can. Borders has begun liquidating its remaining 399 stores as it prepares to end operations. More than $700 million of inventory will be sold. Then come store fixtures, furnishings, shelves, and even café equipment. The sale starts at 40 percent off and will likely last eight to 10 weeks. "This marks the end of an era," said Borders Group president Mike Edwards. A few stores may get a new lease on life, with the chain Books-A-Million bidding for 30 Borders branches.