I painted houses for about 18 months a lot of years back. Some tips you need to know, first, when you paint out of a bucket, punch about 10 holes into the top of the buckets seal channel. This will allow the excess paint to flow back into the bucket when you wipe the brush on the buckets inside edge. A wide brush is often better to control when 'cutting an edge', it holds more paint and can be stroked with more control and direction. Allways start at the top, that way the drips if there any can be covered with lower strokes. To clean your brush, spread the brissels and look into the core of the brush to assure cleanness. Coat your hands with baby oil before you start to fill the skin pores so paint cannot stick to your skin. When painting with oil paint the brush can be hung into a bucket of water overnight, brissels only not any wood part. If you need to change to a different bucket, do it at a cornor and add the remaining paint to the new bucket, light and shadows cover any slight tone change via cornor changes. PS. Paint is very bitter tasteing, just trust me on that one!