I think I must be allergic to dust. Cleaning the house today, I kept sneezing and sneezing.
Mainstream opinion holds that laminate or wood floors are the answer to dust allergies as carpets trap dust. Not everybody agrees; there is a strong argument that carpets improve air quality by absorbing dust that would otherwise be in the air. Either way, having a shoes-off policy will reduce the dust that comes into your house in the first place!