I love this place. The prices are bit much for some things- but you have to keep in mind this is a individually owned shop with goods you won't get at Target or Hallmark.
I love just walking around this store looking at all stuff. The card selection at Paper Skyscraper is vast and unique. As well as the gift slection. For your uber-religious friend, get her a pair of beautiful earrings and a sweet card. For your friends who loves Gilmore Girls and Sex & the City, there is definetely an immense witty selection of cards and gifts.
Stop in, even if to window shop- it's worth the experience.