Santa has a magic key so he can get into every house without a chimney
magic
Chimney!
Santa is magic, the magis is powered by mince pies and sherry.
The chimney magically fits around him.
Not always. Sometimes he has to use magic to get it.
By the chimney if they have one
santa is magic he can do what he wants
Santa has a key that will open any door.
He climbs on your roof and comes down your chimney.
No, he comes down the chimney!
Santa comes down your chimney at exactly 12:00 (midnight).
Well santa can't get into your house becuase he always gets stuck down the chimney but now he can get into your house becuase he has invented a magic key for eveyones house. So he can go in and out of your house without getting stuck!
If you don't have a fireplace, Santa has a magical one that appears just long enough for him to come down the chimney and leave your presents!
Often the chimney, but if your place doesn't have one, then door, window, keyhole, whatever.
He goes either through a chimney or a widow or through the door.
Santa Claus goes down the chimney and puts presents under your tree! Merry Christmas!
He gets in the same way as into houses in other countries, so down the chimney.