Airlessco has a couple of fairly new airless accessories that make spraying and cleanup go more smoothly.
The Airlessco Quick Flush allows the user to flush water-based paints back through the gun and hose into the original paint container. It fits between an airless gun and a garden hose, and it cuts typical clean-up time in half.
The Paint Hopper is a small hopper designed for use on small jobs. Some examples are cabinetry or furniture refinishing and jobs where only a gallon or so of material will be used.