Make sure you place the Pour and Go securely on the edge of the paint can and snap it in place. This will prevent paint from getting into the rim of the can. You can now pour the paint neatly. After use, let the paint dry in the Pour and Go. You can reuse it later, possibly by removing the dry paint first. Make sure that no paint clumps remain at the end. The paint can is sealed airtight without the paint getting dirty or drying out.