I am going to stay in SF 4/30/13- 5/2/13. I can't get a room (2 star ) near Union Square (USW+USE) below $100. Since my budget is tight, I also tried other zones near union square. But I failed again to get a room (2 star) near Financial District, Civic north and SOMA with $85. I checked the price of express the 2 star will be around $105 but no one is in USE or USW. I have already booked Mayflower about 110/night as backup plan so at least I can get a room in a good location with tight budget. Any suggestion? How can I get a little bit cheaper room around center SF (I do not require star level, as long as the room is clean and private) ? Thank you :-)