i've done a couple of successful things ,
booked an all expenses trip to NYC , handed her the tickets over dinner.
went to dubai (stayed in the oasis Baech hotel), but while there i book us a night in the Burj Al Arab 7star hotel , (its unbelieveable luxury)
i'm the cook of the house , but on a random nights , I'd just cook up a an absolute feast 3 course meal all the trimmings plus her fav wine.
had flowers delivered to her at work for no particular reason , she looked that.
things like that , other things , just if your out doing the shopping , just get her fav bar of chocolate and a DVD.