When using latex be sure that the temperature is above 50 degrees F. It is difficult for latex to form a film at lower temperatures. With solvent-borne paint, be sure the temperature is at least 5 degrees above the dew point. If it isn't, water may condense on the surface as it cools while the solvent evaporates, causing an uneven blushing effect.
If you need to purchase a gas oven or range, look for one with an automatic, electric ignition system. An electric ignition saves gas – typically 41% in the oven and 53% on the top burners – because a pilot light is not burning continuously.