The principles behind storing wine are not complex, difficult to understand or necessarily difficult to achieve. And if you can't achieve them all, some of them are better than none. Let's begin with the ideal. From here, you can then try to approach the ideal as close as you are able. You're looking to achieve balance and consistency.
Wine is alive.
As such it reacts either positively or negatively to its environment. How it is treated will determine how fast or slow it will age and how it will turn out in the end. Essentially, wine needs to be kept in a clean, dark, damp place with good ventilation, where it can be stored vibration free at a constant temperature. More important than the actual temperature you will be able to achieve, is the degree and rapidity of fluctuation the wine is subjected to. A slow change of temperature of ten or so degrees between winter and summer is not a big problem.