http://whotohate.com/colors-brush/
Colors Brush
How do I stop from getting a oil painting that is a big blob? The colors blend too much and I clean my brush!?
To prevent getting an oil painting as you describe, you need to control the amount of oil paint you’re actually putting on the canvas. This would mean you may need to use more turpentine to thin the paint before applying, use smaller, drier brushes that pick up less paint, use less force in your application, or get a rag or newspaper to wipe some excess paint off Before You apply. A good way to do it is also to have a blending brush which you squeeze off all the oil paint on it, then blend. Consistently applying thin layers of colour prevents a situation with too much oil paint that is consequently difficult to control. If the situation is very thick and messy already, you could use a palette knife and scrape the excess off the canvas.
At worst, take a lot of the excess paint off, let it dry, and start work later.
Answering on behalf of quette irepse cuz she has rched her answer limit. (:
