It's in the Fairmont Hotel, from the Gingerbread House during Christmas area, you take elevator to P and you'll see the sign for Caffe Cento. You can also enter from California/Powell St too.
50% off pastries, sandwiches, fruit platter if any left starting at 5pm Daily. They close at 6pm.
B. got a small cup of Illy black coffee $1.25
3 tiny macarons for $2, regular $4. - chocolate, pistachio, rose. They are cute & nice.
Lemon bar regular $2.50 ea, got it for $1.25.
Pistachio Cupcake regular $5 - Huge cupcake w/ pistachio around it, some chocolate on top, then a Pistachio macaron. Didn't get, but looks great.
I paid Cash. Didn't check if they take credit, but I think so.
Bathroom - One unisex just around the corner.