If you're looking for a way to cool your room without using air conditioning, there are several options available. One of the simplest and most energy efficient ways is to block out direct sunlight with heavy curtains or blinds. This will help keep the sun's heat from entering your home and make it easier for other cooling methods to work more effectively. Additionally, open windows during cooler times of day when temperatures outside are lower than inside can allow fresh air circulation in your room while helping dissipate some of the heat trapped inside. If you want extra cooling power, fans are relatively inexpensive and very effective at circulating air throughout a space; they also use much less electricity than traditional air conditioners. Evaporative coolers, which blow cooled water vapor into a room, can also be an effective solution if humidity levels aren't too high in your area. Finally, investing in insulation materials like foam board between rooms or under ceilings helps prevent hot outdoor air from entering your living space so that any cooling solutions you choose have an even greater effect on temperature regulation.