based on an article from familyhandyman.com

• For Windows

place awning or shutters on the outside , use insulated window film and spray a sheet with cold water to cover the window’s opening. 

• For Fans

put them in a corner, low to the ground , with a bowl of ice in front of it. In the summer, ceiling fan blades should rotate counter-clockwise 

• For Lamps

use fluorescent ones instead of your incandescent lights

• For Chores

that create heat, try to do them at night

• For exterior Walls

the placement of planting vines can cool them down