Advice for Canadian dogs in winter

From a vet in chilly Ottawa:

Canadian pets, whether big or small, have a unique set of challenges when it comes to winter. For the smaller breeds of dogs (including those who think they are big), the challenge is how to get around even when the snow is deep and the temperature dips to below freezing.

Regardless of the size or breed of dog, however, winters can be challenging for all pets. Several factors determine how dogs cope during the winter months.

Bridget the Scottish Terrier tolerates cold weather well apart from paw problems with salt and the little stones they put down on the street. She will not, however, tolerate booties.