OK, you're making great progress on the paint job and then you remember you have to pick the kids up from school! What do you do? Well the quickest and easiest way to store the paint brush when you'll be back to it within a few hours or even a few days is not to clean it at all! Simply take plastic wrap such as Saran Wrap, and tightly wrap the brush bristles. Be careful not to misshapen the bristles when wrapping.
For more information on this see the tutorial Selection, Care and Storage of a Paint Brush.
