Wedding Ring
.
Seriously, have a look at
red letter days or lastminute.com etc.... for different days out.
Really depends on what her interests are. A surprise weekend in Paris etc can be good. Pick her up from work and wisk her away.
My ex worked in New York. I flew there without telling her, booked a hotel for us and even was telling her how I was having a lazy night in whilst in the taxi from JFK to the resturant I arranged her friend to take her to. That was a fun weekend
.
RB