Brush your dog's coat once weekly. When it starts to shed annually, you need to brush daily during that time to remove all the dead hairs. This also keeps your pet clean and removes that doggy smell. The dead hairs will not be there to form mats with the new hairs. Other weekly maintenance grooming includes checking toenails, trimming hair between feet pads and brushing its teeth.
Long toenails cause pain and difficulty in walking.
Trim the hair between pads to prevent formation of mats. Needless to say, dental and oral hygiene are also very important. Besides brushing its teeth, get the special chewing toys which act as dental cleaners. Your Sheltie can spend pleasurable time chewing without getting bored with loneliness. As your Sheltie is an intelligent dog, it needs physical as well as mental stimulation.