She pulled your hair and made your Barbie's head pop off when you were little, but now you're all grown up and your sister is your best friend and confidant. To thank her for always listening to your sob stories and giving you advice, shower her with gifts.
A great stocking stuffer, Gal Pal ($10) makes deodorant removers so you can help sis keep her clothes free of those nasty white marks.
For the bookworm in the family, Eat, Pray, Love ($9) is an adventurous tale written by a woman in her thirties who finds a passion for eating, praying, and loving while wandering the world.
Coffee drinkers are a dime a dozen and so are those long lines at Starbucks. Help a sister out by giving her a Bodum Bistro Mug Press ($20).
If your sister is an exercise queen (damn her!), gift her with some lululemon reversible pants — it's like two gifts in one — ($84) and a cute tank top ($44) to go with them. She'll happily trade in those ratty, old frat shirts and too short shorts.