None of these
Even if horses are stabled over night, they are hardy animals and don't need shelter at any other time.
Even if horses are stabled over night, provide them with a windbreak or shelter during the day.
Even if horses are stabled over night, bring them into the house and settle them by the fire.
Even if horses are stabled over night, they will need extra food to keep them happy.
Clipped hooves will chip less
Clipped hooves will hold less snow
Clipped hooves will look pretty
Clipped hooves will provide a bit more grip on slippery ground.
None needed as the Horse can hibernate
Plant a shrubbery
Sew some grass seed or re-turf the field
Hay bales scattered around the field
Check for chaffing and irritation
Daily grooming keeps coats cleaner
Gives the blanket fairies a wake up call
Horse is more comfortable
Wear lots of layers to keep the heat in.
Wear a very thick jumper under your jacket to keep heat from escaping.
Perform star jumps and press ups moments before you mount the horse.
Install an excercise bike in the tack room to warm up on.
Can cause eye irritation
Causes loss of body heat
Can be a bit smelly
Flying or falling objects
Here's an interesting quiz for you.