picture frame with picture of the two of you,
charm for pandora bracelet if she has one- or get her a pandora bracelet (but thats more than 30)
bring her somewhere or get tickets for some event she likes... if she likes skiing buy her a lift ticket or buy her ice skates and go skating,
a nice wristlet, purse wallet, bag, (vera bradley, something from the coach outlet)
perfume- nothing that reminds you of your grandmother...
sweatshirt for something she likes (sports team, clothing brand)
and chicks really love it when you make things... my boyfriend made a huge collage of mountain resort stickers from a ski expo we had been to and then framed it- looks pretty sick and now i dont have them just sitting in a box