Keeping your paint trays clean

With lots of painting jobs to do with my renovation project, one of the most helpful tips I was given was to line my painting tray with a garbage bag, or if it is a smaller project and a small tray, a plastic grocery bag is good.  Pour the paint in the lined tray and when you're finished, just pull the bag inside out off the tray and discard.  It has saved me a zillion paint trays!