The Cartwright Hotel Union Square
A relatively inexpensive option (look for online specials), this 1913 Edwardian is part of the Best Western chain's Premier Collection, and it retains a period feel, especially in the tile-floor lobby with a fireplace and adjoining wood-paneled bar. The rooms are San Francisco small and lack for style, but they're comfortable and have desks, flat-screen TVs, and spacious closets. A computer and printer are available in the business center, and Wi-Fi is free.