Are you like me and hate cleaning brushes between coats?
Put your brushes and rollers inside a plastic zip lock bag and seal. When working with multiple brushes, label the bags accordingly.
The bags can sit out for several hours but if you're not getting back to them within 24 hours, simply put the bags in the freezer. They don't take long to unthaw. I use this trick for stain too.
If you left your brushes out too long and they got all hard and crusty, soak the bristles in a container of Laundry Fabric Softener overnight. Rinse them with water and your brushes will be as good as new again!