Here are a few gift ideas for your girlfriend's birthday:
A bouquet of her favorite flowers.
A box of chocolates or a basket of gourmet food items.
A new piece of jewelry, such as a necklace or a pair of earrings.
A gift certificate for a day at the spa.
A new book or a subscription to her favorite magazine.
A fancy candle or a set of scented bath products.
A new makeup or skincare set.
A cute and cozy blanket or throw pillow.
A gift certificate for a cooking or baking class.
A gift certificate for a fun activity, such as rock climbing or laser tag.