Buy High Sell Low
I went to Vancouver, its airport had several waterfalls inside. I just loved it.
As with air travel I had to go through security check. I asked them whether I had to take off my belt, my shoes, and my glasses. They said "no", you're in Canada now.
Canada now has Marijuana legalized, and with that it is a little bit easier to obtain it's cousin which has no effect on a person's mind: HEMP. Formerly a risky legal plant to buy and sell, HEMP is now making it big now that it doesn't look like something illegal. I decided not to buy though. I never touch the stuff.