I'm not a painter. I don't understand colour theory - its on my list of things to learn.
I have been using watercolours recently and having a terrible time blending them. I finally figured out why. I have been trying to blend them on the paper instead of the palette.
I did have to laugh at myself when I finally clued in.
p.s. The new Frank Warren book "A Lifetime of Secrets" is available now. I plan to purchase it online as I refuse to pay the Canadian price. I'd rather wait a few extra days a purchase it from the States.