My twins are 6 and whilst one of them is super easy to buy for - Barbie, LOL etc. the other just doesn't 'want' anything!
She loves crafts and gas writing but has loads of stuff like that. She has Cerebral Palsy and uses sticks so can't use anything like roller skates, 'normal ' bike etc. when I ask her she just says I don't really want anything... v sweet but not helpful on Christmas morning! Any ideas??