I'm about to buy an oil mister so I can use my own oil instead of buying the Trader Joe's cans. I usually get the Canola oil or the Coconut oil from them, and use them for most of my baking. Since I'm only getting one mister, I want to fill it with the most all-purpose kind of oil. What do you think is the best type of oil for greasing baking dishes -- canola? Vegetable?