When buying a refrigerator, there are several key factors to consider to ensure you make the best choice for your needs and budget. First and foremost, pay attention to the refrigerator's energy efficiency. According to the U.S. Department of Energy, energy-efficient refrigerators can save you up to $270 over the lifetime of the appliance. This is crucial not only for reducing your utility bills but also for minimizing your carbon footprint. Additionally, look for features like LED lighting, which can further enhance energy efficiency and provide better visibility inside the fridge. Another important aspect is the refrigerator's size and layout. Make sure it fits comfortably in your space and meets your storage requirements. Consider the type of compressor, as some models are quieter and more reliable. Lastly, check for durability and warranty options to ensure you're investing in a long-lasting appliance.