My understanding is that this is good for the next two weeks:
http://www.allromanceebooks.com/prod...86957-149.html
Wrapped and Ready by Julie Kenner
Can volunteer elf Annie turn department-store heir Brent from snooty Scrooge to sexy Santa?
A girl from the "wrong side of the tracks," Annie Silver's always been something of a loner, depending only on her best friend, Faith Howard, for friendship and her family for love. In school, she excelled academically, but she never tried to make friends with the "in" crowd,
content to watch them from afar. And, in particular, she watched Brent Carrington.
Christmas is her favorite holiday, and every year she's worked holiday shifts at Brent's family's department store. This year, however, she's got something more than holiday work in mind. Now that she's about to leave her hometown of Bishop, Ohio, for Manhattan, she's determined to have what she's always wanted—Brent.
Available in PDF and epub
You can get in both formats, just "buy" it twice and download both.
They are also offering a 25% ebook ebucks rebate on all Harlequin purchases for the next two weeks. I've never used these so I can't say how they work.