After opening a new can of paint, use a nail to drive about five or six holes around the rim where the lid sits. This will allow paint to drain back into the can instead of filling the rim. If the rim fills with paint, it is difficult to reseal the can.
To avoid cleaning brushes and rollers in the middle of a project involving oil-base paints, wrap the brush or roller in aluminium foil overnight to prevent solvent from evaporating and the brush / roller from hardening.
Synthetic (nylon) brushes should not be left standing on their bristles in solvent (either water or mineral spirits). The bristles will develop a permanent curl, rendering the brush useless. Brushes made from natural (hog) bristles should not be used in water-based or latex paints. These bristles absorb water and swell, destroying the shape of the brush.
Drag and drop your favourite to create your own unique CIL color palette