Over the years I have learned some techniques for painting with oil paints without using solvents. I really like the working quality of oil paints, but just don't want to handle solvents.
Clean your brushes with a mixture of one half Murphy Oil and one half water. This even works to rescue brushes that have dried paint. I find this to be a better cleaner than mineral spirits and much more friendly to the environment. It cleans your hands as well.
I cover my palate with waxed paper so that I don't have any clean up at the end of the day.