The how has to do with a storage place where the temperature is within reasonable levels (not less than 50, or more than 70 degrees Fahrenheit). A bottle stored at a temperature above 70 degrees will die sooner, but remember that a very young wine, (1 to 5 years old), can be kept under those temperatures for at least 6 months without getting spoiled. The only thing that will happen to your wine is that it will age faster, thus, creating a fabulous experience when you open it. More than 6 months may not be a good idea at those temperatures, but, why not trying?
Where to keep it, I would assure anyone that you don’t need a cellar if you don’t keep more than 10 to 20 bottles in stock and drink wine regularly. Far from heating devices, compressors, and coolers, would do just perfect. If you already have a cellar, you probably have all those answers.