The paint set on my desk includes 28 different paints. I've found that I like my paintings more when I use a limited palette of just 3 or 4. The colors coordinate with each other better and I'm not overwhelmed with color choices. When I have just 4 paints, I have to rely heavily on mixing. Mixing actually gets me way more then 28 different colors. So I've decided to practice with just these 4 paints from Daniel Smith for a while. I'll fill up some full pans to put in my urban sketching kit and I'll even have the chance to pre-mix a couple of colors in the pan. I'm thinking I'll try pre-mixing a green and a grey. That should save me some time when I am out and about.