The colors used in a room can make you feel warm or cold. Light color paints reflect more light compared to the dark color paints. Also light color paints lights up the room making an energy-efficient home.
For example, use no-lead, no-mercury paint and non-pesticides treated wood. Many types of construction materials contain chemical and toxins that can be released into indoor environment. Moreover, choose recycled materials whenever possible.
Ceiling fan use less energy than air conditioner. There are many nice designs in the market. Furthermore, turn on ceiling fan together with air conditioner allow one to run the air conditioner at a higher temperature, hence, consume less energy.