If she's a bit adventurous make your own private geocaching with a treasure at each location and make a day of it.
Some of my favorite things:
Pedicure at fav salon - yes it makes a difference. Don't forget we like designs
Salt scrub at spa
Couples massage is relaxing and romantic
Hand written love letter ( rare and really treasured).
Gift certificate for MAC, Macy's, Ulta
ohh shoe shopping - help her pick out sexy boots for the winter.
Chooka rain boots (so cute)
Brand philosophy -body lotion - fragrance "unconditional love".
Chocolate dipped strawberries totally easy to make - they now have plug in pots for it. Do it together - buy her Jammie's - depending upon what she likes - could be silky or cotton lol & get yourself some as well lol. Set the tone with music and lighting and dip various fruit together and have fun -
Not romantic - but will get you brownie points - have her car detailed.
Finish a project around the house that has been put off
I started this fun project - I got a map of California - map pins very large framed corkboard and we pin every place we go together. I then make mini photos of us from many of these locations and pin on the board - we look forward to doing this together after weekend getaways and it helps plan where we want to see next.
Seriously- a two page hand written letter from my boyfriend telling me how important I am to him and how his life has changed over the past 2 years .... Write from your heart the things that ramble in your head. It brings tears when I read it.