Love her or hate her, she’s your sister after all. Chances are you won’t meet often after college anyway, so whenever the opportunity arises, get her a small gift to let her know that you still exist. Or perhaps it’s not gray and gloomy like that, and you have a great relationship with your sister. In that case, you have even more reasons to get her a present — maybe for her birthday, wedding anniversary, Christmas, or housewarming party.