Valid until February 28. It's small and old-fashioned but has private bathrooms and perks like electronic keys. Promotion ends December 29. Herbert Hotel , at 161 Powell, is on the Powell cable car line near Union Square, near the shopping. There are 104 fairly basic rooms, with free access to a fitness center and heated pool a few blocks away.
Some rooms have kitchenettes.
Valid until February 28. Breakfast is free. Valid until December 31. Those prices are all available directly from the hotels themselves, but always check a consolidator to compare rates.