How about getting her something she can wear for the fall? Like a really pretty scarf in her favorite color, if she likes chocolate go to a near by chocolate shop or grocery store and get her some nice chocolates. Make her a card, give her a hug … itunes card, new nail polish, … ask her what she likes, most people prefer being asked what they want or like because then they aren’t stuck with something they aren’t going to use. If you want to surprise her though, think about what you know about her, and put it to use. If she has a job where she does a lot of standing … chances are she needs to relax her feet, get her everything she might need for a spa day, feet rub, face mask, a cucumber so she can cut it up and put it over her eyes, a really good smelling candle. You could get her flowers, and a cupcake, if you are on a tight budget, you could make her a coupon book, where you volunteer to wash her car … walk her dog … compliment her … well good luck!