Gift card to some place you know she shops at. If you don't know where she shops, Best Buys is safe. That's something you'd give a friend.
Other safe, neutral gifts that seem slightly more thoughtful (as in, you went and picked them out yourself) are books, CDs, DVDs or a gift certificate to her favorite hair place or a place near her where she can get spa/massage services.
Clothing, perfume or jewelry can send the wrong message (jewelry is the one thing that you can get away with IF you know her really well and she's really into jewelry but otherwise steer clear).
Other safe, neutral gifts that seem slightly more thoughtful (as in, you went and picked them out yourself) are books, CDs, DVDs or a gift certificate to her favorite hair place or a place near her where she can get spa/massage services.
Clothing, perfume or jewelry can send the wrong message (jewelry is the one thing that you can get away with IF you know her really well and she's really into jewelry but otherwise steer clear).