Packing for Canada: essentials

Anna

Next month I will beginn my study abroad 'adventure' in BC, Canada. Naturally I dont want to over pack, so I would be grateful for some advice. I've been abroad before(quite often for a 16/yo,) but never in North America). What are your go to essentials (besides toiletries and clothing)? Quick question for the locals: what do you wear when it get's cold?